Term IRI Term label Parent term IRI Parent term label Alternative term Definition http://purl.obolibrary.org/obo/SPD_0000001 multi-cellular organism http://purl.obolibrary.org/obo/SPD_0000675 anatomical structure Anatomical structure that is an individual member of a species and consists of more than one cell. http://purl.obolibrary.org/obo/SPD_0000002 prosoma http://purl.obolibrary.org/obo/SPD_0000013 tagma The anterior division of the spider body. http://purl.obolibrary.org/obo/SPD_0000003 opisthosoma http://purl.obolibrary.org/obo/SPD_0000013 tagma The posterior division of the spider body. http://purl.obolibrary.org/obo/SPD_0000004 cuticle http://purl.obolibrary.org/obo/SPD_0000456 acellular anatomical structure The outer non-cellular layer of the integument formed by the epidermis. http://purl.obolibrary.org/obo/SPD_0000005 carapace http://purl.obolibrary.org/obo/SPD_0000663 sclerite The sclerite that covers the prosoma dorsally. http://purl.obolibrary.org/obo/SPD_0000006 pedicel http://purl.obolibrary.org/obo/SPD_0000422 opisthosomal segment 1 First opisthosomal segment, the narrowed connection between prosoma and opisthosoma. http://purl.obolibrary.org/obo/SPD_0000008 portion of organism substance http://purl.obolibrary.org/obo/SPD_0000674 material anatomical entity Material anatomical entity in a gaseous, liquid, semisolid or solid state; produced by anatomical structures or derived from inhaled and ingested substances that have been modified by anatomical structures as they pass through the body. http://purl.obolibrary.org/obo/SPD_0000010 spinneret http://purl.obolibrary.org/obo/SPD_0000651 appendage Finger-like or conical silk spinning appendages located at the posterior end of the opisthosoma. http://purl.obolibrary.org/obo/SPD_0000013 tagma http://purl.obolibrary.org/obo/SPD_0000688 organism subdivision Any of the two main divisions of the whole organism formed from groups of segments. http://purl.obolibrary.org/obo/SPD_0000015 eye http://purl.obolibrary.org/obo/SPD_0000650 sensory organ Light sensing organ with a single lens. http://purl.obolibrary.org/obo/SPD_0000019 chelicera http://purl.obolibrary.org/obo/SPD_0000651 appendage The anterior appendage of a spider (the jaw) consisting of a large basal segment (paturon) and an apical fang. http://purl.obolibrary.org/obo/SPD_0000020 female palp http://purl.obolibrary.org/obo/SPD_0000335 palp The palp of the female. http://purl.obolibrary.org/obo/SPD_0000021 leg 1 http://purl.obolibrary.org/obo/SPD_0000372 leg Appendage of prosoma, between the palp and leg 2. http://purl.obolibrary.org/obo/SPD_0000022 leg 2 http://purl.obolibrary.org/obo/SPD_0000372 leg Appendage of prosoma, between the leg 1 and leg 3. http://purl.obolibrary.org/obo/SPD_0000023 leg 3 http://purl.obolibrary.org/obo/SPD_0000372 leg Appendage of prosoma, between the leg 2 and leg 4. http://purl.obolibrary.org/obo/SPD_0000024 leg 4 http://purl.obolibrary.org/obo/SPD_0000372 leg Most posterior appendage of prosoma. http://purl.obolibrary.org/obo/SPD_0000025 pedicel sternite http://purl.obolibrary.org/obo/SPD_0000358 opisthosomal sternite Ventral sclerite on the pedicel. http://purl.obolibrary.org/obo/SPD_0000026 pedicel tergite http://purl.obolibrary.org/obo/SPD_0000357 opisthosomal tergite The dorsal sclerite on the pedicel, or lorum. In many spiders the lorum is transversally divided into lorum 1 and lorum 2. http://purl.obolibrary.org/obo/SPD_0000027 anterior booklung http://purl.obolibrary.org/obo/SPD_0000428 booklung The booklung of the second opisthosomal segment. http://purl.obolibrary.org/obo/SPD_0000036 anterior lateral spinneret http://purl.obolibrary.org/obo/SPD_0000010 spinneret The lateral spinneret of the fourth opisthosomal segment. http://purl.obolibrary.org/obo/SPD_0000037 posterior median spinneret http://purl.obolibrary.org/obo/SPD_0000010 spinneret The median spinneret of the fifth opisthosomal segment. http://purl.obolibrary.org/obo/SPD_0000038 posterior lateral spinneret http://purl.obolibrary.org/obo/SPD_0000010 spinneret The lateral spinneret of the fifth opisthosomal segment. http://purl.obolibrary.org/obo/SPD_0000039 chilum http://purl.obolibrary.org/obo/SPD_0000663 sclerite A small sclerite at the base of the chelicera, under the clypeus. http://purl.obolibrary.org/obo/SPD_0000041 anal tubercle tergite http://purl.obolibrary.org/obo/SPD_0000357 opisthosomal tergite The dorsal sclerite of the anal tubercle. http://purl.obolibrary.org/obo/SPD_0000042 anal tubercle sternite http://purl.obolibrary.org/obo/SPD_0000358 opisthosomal sternite The ventral sclerite of the anal tubercle. http://purl.obolibrary.org/obo/SPD_0000043 integument http://purl.obolibrary.org/obo/SPD_0000678 anatomical system The organ system of ectodermal origin consisting of cuticle and epidermis. It includes also sensory and glandular structures. http://purl.obolibrary.org/obo/SPD_0000044 female genitalia http://purl.obolibrary.org/obo/SPD_0000677 anatomical cluster The elements in the second and third segment of the opisthosoma of adult females, which are involved in copulation, sperm storage and fertilization. http://purl.obolibrary.org/obo/SPD_0000045 male palp http://purl.obolibrary.org/obo/SPD_0000335 palp The palp of the adult male, modified, with a copulatory organ attached to the tarsus. http://purl.obolibrary.org/obo/SPD_0000048 anterior median eye http://purl.obolibrary.org/obo/SPD_0000392 direct eye The median of the anterior row. http://purl.obolibrary.org/obo/SPD_0000049 anterior lateral eye http://purl.obolibrary.org/obo/SPD_0000015 eye The lateral eye of the anterior row. http://purl.obolibrary.org/obo/SPD_0000050 posterior median eye http://purl.obolibrary.org/obo/SPD_0000015 eye The median eye of the posterior row. http://purl.obolibrary.org/obo/SPD_0000051 posterior lateral eye http://purl.obolibrary.org/obo/SPD_0000015 eye The lateral eye of the posterior row. http://purl.obolibrary.org/obo/SPD_0000053 silk cable http://purl.obolibrary.org/obo/SPD_0000318 silk structure A cord of silk composed by more than one silk fiber. http://purl.obolibrary.org/obo/SPD_0000054 silk fiber http://purl.obolibrary.org/obo/SPD_0000318 silk structure A single silk thread, produced by a single spigot. http://purl.obolibrary.org/obo/SPD_0000055 opisthosomal segment http://purl.obolibrary.org/obo/SPD_0000687 segment A segment of the opisthosoma. http://purl.obolibrary.org/obo/SPD_0000061 posterior booklung http://purl.obolibrary.org/obo/SPD_0000428 booklung The booklung of the third opisthosomal segment. http://purl.obolibrary.org/obo/SPD_0000062 clypeal gland http://purl.obolibrary.org/obo/SPD_0000679 gland A depression on the clypeus with glandular tissue. http://purl.obolibrary.org/obo/SPD_0000063 suprapalpal pit gland http://purl.obolibrary.org/obo/SPD_0000679 gland A depression on the side of the carapace, above the palp, with pores, presumable gland openings. http://purl.obolibrary.org/obo/SPD_0000065 median trachea http://purl.obolibrary.org/obo/SPD_0000434 trachea A paired trachea arising between the two lateral respiratory structures. Median tracheae are derived from muscle apodemes (the 3rd opisthosomal entapophyses), and thus may retain a connection with the opisthosomal muscles at the tip. http://purl.obolibrary.org/obo/SPD_0000066 entapophysis 3 http://purl.obolibrary.org/obo/SPD_0000439 opisthosomal entapophysis The entapophysis of the third opisthosomal segment. http://purl.obolibrary.org/obo/SPD_0000067 fang http://purl.obolibrary.org/obo/SPD_0000822 podomere The apical segment of a chelicera, bearing the opening of the venom gland. http://purl.obolibrary.org/obo/SPD_0000068 paturon http://purl.obolibrary.org/obo/SPD_0000822 podomere The basal segment of the chelicera. http://purl.obolibrary.org/obo/SPD_0000069 posterior booklung spiracle http://purl.obolibrary.org/obo/SPD_0000429 booklung spiracle The spiracle of the posterior booklung. http://purl.obolibrary.org/obo/SPD_0000070 posterior booklung leaf http://purl.obolibrary.org/obo/SPD_0000430 booklung leaf A leaf of the posterior booklung. http://purl.obolibrary.org/obo/SPD_0000071 intercheliceral sclerite http://purl.obolibrary.org/obo/SPD_0000663 sclerite A small sclerite on the posterior end of the intercheliceral articulation, usually matching a small concavity on each paturon. http://purl.obolibrary.org/obo/SPD_0000073 female palpal coxa http://purl.obolibrary.org/obo/SPD_0000822 podomere The basal, 1st segment of the female palp. It may be expanded in a lobe, and then is called endite. http://purl.obolibrary.org/obo/SPD_0000074 female palpal trochanter http://purl.obolibrary.org/obo/SPD_0000822 podomere The 2nd segment of the female palp, between coxa and femur. http://purl.obolibrary.org/obo/SPD_0000075 female palpal femur http://purl.obolibrary.org/obo/SPD_0000822 podomere The 3rd segment of the female palp, between trochanter and patella. http://purl.obolibrary.org/obo/SPD_0000076 female palpal patella http://purl.obolibrary.org/obo/SPD_0000822 podomere The 4th segment of the female palp, between femur and tibia. http://purl.obolibrary.org/obo/SPD_0000077 female palpal tibia http://purl.obolibrary.org/obo/SPD_0000822 podomere The 5th segment of the female palp, between patella and tarsus. http://purl.obolibrary.org/obo/SPD_0000078 female palpal tarsus http://purl.obolibrary.org/obo/SPD_0000822 podomere The 6th segment of the female palp, between tibia and pretarsus. http://purl.obolibrary.org/obo/SPD_0000079 palpal claw http://purl.obolibrary.org/obo/SPD_0000381 claw A claw on the palp. http://purl.obolibrary.org/obo/SPD_0000081 anterior median spinneret http://purl.obolibrary.org/obo/SPD_0000010 spinneret The median spinneret of the fourth opisthosomal segment. They are present only in Mesothelae, and transformed in the cribellum or colulus in some Araneomorphae. http://purl.obolibrary.org/obo/SPD_0000082 coxa 1 http://purl.obolibrary.org/obo/SPD_0000373 coxa The coxa of the leg 1. http://purl.obolibrary.org/obo/SPD_0000083 trochanter 1 http://purl.obolibrary.org/obo/SPD_0000374 trochanter The trochanter of leg 1. http://purl.obolibrary.org/obo/SPD_0000084 femur 1 http://purl.obolibrary.org/obo/SPD_0000375 femur The femur of leg 1. http://purl.obolibrary.org/obo/SPD_0000085 patella 1 http://purl.obolibrary.org/obo/SPD_0000376 patella The patella of leg 1. http://purl.obolibrary.org/obo/SPD_0000086 tibia 1 http://purl.obolibrary.org/obo/SPD_0000377 tibia The tibia of leg 1. http://purl.obolibrary.org/obo/SPD_0000087 metatarsus 1 http://purl.obolibrary.org/obo/SPD_0000378 metatarsus The metatarsus of leg 1. http://purl.obolibrary.org/obo/SPD_0000088 tarsus 1 http://purl.obolibrary.org/obo/SPD_0000379 tarsus The tarsus of leg 1. http://purl.obolibrary.org/obo/SPD_0000089 claw 1 http://purl.obolibrary.org/obo/SPD_0000381 claw A claw on the leg 1. http://purl.obolibrary.org/obo/SPD_0000090 coxa 2 http://purl.obolibrary.org/obo/SPD_0000373 coxa The coxa of the leg 2. http://purl.obolibrary.org/obo/SPD_0000091 trochanter 2 http://purl.obolibrary.org/obo/SPD_0000374 trochanter The trochanter of leg 2. http://purl.obolibrary.org/obo/SPD_0000092 femur 2 http://purl.obolibrary.org/obo/SPD_0000375 femur The femur of leg 2. http://purl.obolibrary.org/obo/SPD_0000093 patella 2 http://purl.obolibrary.org/obo/SPD_0000376 patella The patella of leg 2. http://purl.obolibrary.org/obo/SPD_0000094 tibia 2 http://purl.obolibrary.org/obo/SPD_0000377 tibia The tibia of leg 2. http://purl.obolibrary.org/obo/SPD_0000095 metatarsus 2 http://purl.obolibrary.org/obo/SPD_0000378 metatarsus The metatarsus of leg 2. http://purl.obolibrary.org/obo/SPD_0000096 tarsus 2 http://purl.obolibrary.org/obo/SPD_0000379 tarsus The tarsus of leg 2. http://purl.obolibrary.org/obo/SPD_0000097 claw 2 http://purl.obolibrary.org/obo/SPD_0000381 claw A claw on the leg 2. http://purl.obolibrary.org/obo/SPD_0000098 coxa 3 http://purl.obolibrary.org/obo/SPD_0000373 coxa The coxa of the leg 3. http://purl.obolibrary.org/obo/SPD_0000099 trochanter 3 http://purl.obolibrary.org/obo/SPD_0000374 trochanter The trochanter of leg 3. http://purl.obolibrary.org/obo/SPD_0000100 femur 3 http://purl.obolibrary.org/obo/SPD_0000375 femur The femur of leg 3. http://purl.obolibrary.org/obo/SPD_0000101 patella 3 http://purl.obolibrary.org/obo/SPD_0000376 patella The patella of leg 3. http://purl.obolibrary.org/obo/SPD_0000102 tibia 3 http://purl.obolibrary.org/obo/SPD_0000377 tibia The tibia of leg 3. http://purl.obolibrary.org/obo/SPD_0000103 metatarsus 3 http://purl.obolibrary.org/obo/SPD_0000378 metatarsus The metatarsus of leg 3. http://purl.obolibrary.org/obo/SPD_0000104 tarsus 3 http://purl.obolibrary.org/obo/SPD_0000379 tarsus The tarsus of leg 3. http://purl.obolibrary.org/obo/SPD_0000105 claw 3 http://purl.obolibrary.org/obo/SPD_0000381 claw A claw on the leg 3. http://purl.obolibrary.org/obo/SPD_0000106 coxa 4 http://purl.obolibrary.org/obo/SPD_0000373 coxa The coxa of the leg 4. http://purl.obolibrary.org/obo/SPD_0000107 trochanter 4 http://purl.obolibrary.org/obo/SPD_0000374 trochanter The trochanter of leg 4. http://purl.obolibrary.org/obo/SPD_0000108 femur 4 http://purl.obolibrary.org/obo/SPD_0000375 femur The femur of leg 4. http://purl.obolibrary.org/obo/SPD_0000109 patella 4 http://purl.obolibrary.org/obo/SPD_0000376 patella The patella of leg 4. http://purl.obolibrary.org/obo/SPD_0000110 tibia 4 http://purl.obolibrary.org/obo/SPD_0000377 tibia The tibia of leg 4. http://purl.obolibrary.org/obo/SPD_0000111 metatarsus 4 http://purl.obolibrary.org/obo/SPD_0000378 metatarsus The metatarsus of leg 4. http://purl.obolibrary.org/obo/SPD_0000112 tarsus 4 http://purl.obolibrary.org/obo/SPD_0000379 tarsus The tarsus of leg 4. http://purl.obolibrary.org/obo/SPD_0000113 claw 4 http://purl.obolibrary.org/obo/SPD_0000381 claw A claw on the leg 4. http://purl.obolibrary.org/obo/SPD_0000114 foregut http://purl.obolibrary.org/obo/SPD_0000781 integumental tube The anterior portion of the gut, of ectodermal origin and lined with cuticle. http://purl.obolibrary.org/obo/SPD_0000116 coxal gland http://purl.obolibrary.org/obo/SPD_0000679 gland Each of the prosomal excretory glands discharging on the leg coxae. http://purl.obolibrary.org/obo/SPD_0000119 spigot of anterior median spinneret http://purl.obolibrary.org/obo/SPD_0000081 anterior median spinneret A spigot on the anterior median spinneret. http://purl.obolibrary.org/obo/SPD_0000120 lateral trachea http://purl.obolibrary.org/obo/SPD_0000434 trachea A lateral respiratory structure in form of tube. Lateral tracheae are homologous to the booklung atrium. http://purl.obolibrary.org/obo/SPD_0000125 spinning field of anterior lateral spinneret http://purl.obolibrary.org/obo/SPD_0000363 spinning field The spinning field of the anterior lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000126 spinning field of posterior median spinneret http://purl.obolibrary.org/obo/SPD_0000363 spinning field The spinning field of the posterior median spinneret. http://purl.obolibrary.org/obo/SPD_0000129 spinning field of posterior lateral spinneret http://purl.obolibrary.org/obo/SPD_0000363 spinning field The spinning field of the posterior lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000130 heart http://purl.obolibrary.org/obo/SPD_0000778 epithelial tube The central pumping organ of the circulatory system, located dorso-medially in the anterior part of the opisthosoma within a pericardial sinus. http://purl.obolibrary.org/obo/SPD_0000135 anterior copulatory duct http://purl.obolibrary.org/obo/SPD_0000701 copulatory duct A copulatory duct in the anterior section of the female genitalia. http://purl.obolibrary.org/obo/SPD_0000136 copulatory opening http://purl.obolibrary.org/obo/SPD_0000691 anatomical space The orifice leading to the copulatory duct in entelegyne condition. http://purl.obolibrary.org/obo/SPD_0000137 anterior fertilization duct http://purl.obolibrary.org/obo/SPD_0000700 fertilization duct The fertilization duct in the anterior section of the female genitalia, connecting with the uterus externus or bursa. http://purl.obolibrary.org/obo/SPD_0000139 Bennett's gland http://purl.obolibrary.org/obo/SPD_0000600 cluster of glandular units A delimited patch of glandular pores on the spermathecae of entelegyne spiders. http://purl.obolibrary.org/obo/SPD_0000143 epigynal cuticular glands http://purl.obolibrary.org/obo/SPD_0000679 gland Small glands with a cuticular duct, discharging through a pore on the epigynal plate. http://purl.obolibrary.org/obo/SPD_0000144 male palpal coxa http://purl.obolibrary.org/obo/SPD_0000822 podomere The basal, 1st segment of the male palp. http://purl.obolibrary.org/obo/SPD_0000149 male palpal trochanter http://purl.obolibrary.org/obo/SPD_0000822 podomere The 2nd segment of the male palp, between coxa and femur. http://purl.obolibrary.org/obo/SPD_0000150 male palpal femur http://purl.obolibrary.org/obo/SPD_0000822 podomere The 3rd segment of the male palp, between trochanter and patella. http://purl.obolibrary.org/obo/SPD_0000151 male palpal patella http://purl.obolibrary.org/obo/SPD_0000822 podomere The 4th segment of the male palp, between femur and tibia. http://purl.obolibrary.org/obo/SPD_0000152 male palpal tibia http://purl.obolibrary.org/obo/SPD_0000822 podomere The 5th segment of the male palp, between patella and tarsus. http://purl.obolibrary.org/obo/SPD_0000154 male palpal tibia dorsal process http://purl.obolibrary.org/obo/SPD_0000526 male palpal tibial process A process on the dorsal surface of the male palpal tibia. http://purl.obolibrary.org/obo/SPD_0000155 male palpal tibia prolateral process http://purl.obolibrary.org/obo/SPD_0000526 male palpal tibial process A process on the prolateral surface of the male palpal tibia. http://purl.obolibrary.org/obo/SPD_0000156 male palpal tibia retrolateral apophysis http://purl.obolibrary.org/obo/SPD_0000526 male palpal tibial process A process on the retrolateral surface of the male palpal tibia. http://purl.obolibrary.org/obo/SPD_0000157 male palpal tibia ventral process http://purl.obolibrary.org/obo/SPD_0000526 male palpal tibial process A process on the ventral surface of the male palpal tibia. http://purl.obolibrary.org/obo/SPD_0000158 cymbium http://purl.obolibrary.org/obo/SPD_0000822 podomere The tarsus, 6th and last segment of the male palp connected with the tibia. The name cymbium is mostly used when modified as a spoon-shaped structure containing the copulatory bulb. http://purl.obolibrary.org/obo/SPD_0000159 tarsal organ of cymbium http://purl.obolibrary.org/obo/SPD_0000310 tarsal organ The tarsal organ of the male palpal tarsus. http://purl.obolibrary.org/obo/SPD_0000160 base of major ampullate gland spigot http://purl.obolibrary.org/obo/SPD_0000147 spigot base The base of major ampullate gland spigot. http://purl.obolibrary.org/obo/SPD_0000161 cymbium dorsal chemosensory seta http://purl.obolibrary.org/obo/SPD_0000525 seta of cymbium Each of the chemosensory setae on the male palpal tarsus. http://purl.obolibrary.org/obo/SPD_0000162 cymbium apical seta http://purl.obolibrary.org/obo/SPD_0000525 seta of cymbium Any of the apical setae on the male palpal cymbium. http://purl.obolibrary.org/obo/SPD_0000166 paracymbium http://purl.obolibrary.org/obo/SPD_0000524 process of cymbium A process on the retrolateral-basal sector of the cymbium. It may be flexibly articulated through a movable membrane, or a rigid outgrowth. http://purl.obolibrary.org/obo/SPD_0000167 cymbial dorsal process http://purl.obolibrary.org/obo/SPD_0000524 process of cymbium A process on the dorsal surface of the cymbium. http://purl.obolibrary.org/obo/SPD_0000170 basal hematodocha http://purl.obolibrary.org/obo/SPD_0000519 hematodocha The membrane connecting the genital bulb to the tarsus. http://purl.obolibrary.org/obo/SPD_0000171 subtegulum http://purl.obolibrary.org/obo/SPD_0000663 sclerite The basal sclerite of the bulb, connected to the cymbium by the basal hematodocha. It contains the fundus of the spermaphor. http://purl.obolibrary.org/obo/SPD_0000173 tegulum http://purl.obolibrary.org/obo/SPD_0000663 sclerite The middle sclerite of the male palp, that contains the spermophore and bears the embolus. http://purl.obolibrary.org/obo/SPD_0000174 median hematodocha http://purl.obolibrary.org/obo/SPD_0000519 hematodocha The membrane connecting the tegulum to the subtegulum. http://purl.obolibrary.org/obo/SPD_0000175 embolic division http://purl.obolibrary.org/obo/SPD_0000520 division of copulatory bulb The division of the copulatory bulb distal to the median division, articulated to the tegulum by a terminal hematodocha. It contains the embolus, the sperm outlet, and may also have additional sclerites such as the radix. http://purl.obolibrary.org/obo/SPD_0000176 embolus http://purl.obolibrary.org/obo/SPD_0000663 sclerite The intromittent sclerite of the male copulatory bulb, where the spermophor discharges. http://purl.obolibrary.org/obo/SPD_0000177 spermophor http://purl.obolibrary.org/obo/SPD_0000781 integumental tube The tube inside the copulatory bulb containing the sperm. It runs from the blind fundus in the subtegulum, to an opening in the embolus. It is often sclerotized and served by many glands. http://purl.obolibrary.org/obo/SPD_0000178 median apophysis http://purl.obolibrary.org/obo/SPD_0000663 sclerite A sclerite of the copulatory bulb arising from the tegulum. http://purl.obolibrary.org/obo/SPD_0000179 conductor http://purl.obolibrary.org/obo/SPD_0000663 sclerite A sclerite of the male palp inserted in the tegulum. It usually guides or fits part of the embolus; may be sclerotized or hyaline. http://purl.obolibrary.org/obo/SPD_0000180 terminal hematodocha http://purl.obolibrary.org/obo/SPD_0000519 hematodocha The membrane connecting the embolic division with the tegulum. http://purl.obolibrary.org/obo/SPD_0000182 shaft of major ampullate gland spigot http://purl.obolibrary.org/obo/SPD_0000153 spigot shaft The shaft of major ampullate gland spigot. http://purl.obolibrary.org/obo/SPD_0000183 base of piriform gland spigot http://purl.obolibrary.org/obo/SPD_0000147 spigot base The base of the piriform gland spigot. http://purl.obolibrary.org/obo/SPD_0000187 cheliceral gland http://purl.obolibrary.org/obo/SPD_0000679 gland A gland in the paturon of the chelicera, discharging secretion through a small field patch of pores on the fang furrow, opposing the venom outlet. http://purl.obolibrary.org/obo/SPD_0000188 cheliceral stridulatory file http://purl.obolibrary.org/obo/SPD_0000686 stridulatory file A file on the ectal side of the paturon, used in conjunction with palpal femoral thorns to produce stridulation. The file is usually made of a series of fine horizontal ridges, but it may be composed of large, well spaced ridges (in Scytodidae) or a scaly surface. http://purl.obolibrary.org/obo/SPD_0000189 shaft of piriform gland spigot http://purl.obolibrary.org/obo/SPD_0000153 spigot shaft The shaft of piriform gland spigot. http://purl.obolibrary.org/obo/SPD_0000190 shaft of aciniform gland spigot of posterior lateral spinneret http://purl.obolibrary.org/obo/SPD_0000153 spigot shaft The shaft of an aciniform gland spigot on the posterior lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000191 anterior median eye retina http://purl.obolibrary.org/obo/SPD_0000564 retina The retina of the anterior median eye. http://purl.obolibrary.org/obo/SPD_0000192 anterior lateral eye tapetum http://purl.obolibrary.org/obo/SPD_0000343 tapetum The tapetum of the anterior lateral eye. http://purl.obolibrary.org/obo/SPD_0000193 posterior median eye tapetum http://purl.obolibrary.org/obo/SPD_0000343 tapetum The tapetum of the posterior median eye. http://purl.obolibrary.org/obo/SPD_0000194 posterior lateral eye tapetum http://purl.obolibrary.org/obo/SPD_0000343 tapetum The tapetum of the posterior lateral eye. http://purl.obolibrary.org/obo/SPD_0000200 maxillary gland http://purl.obolibrary.org/obo/SPD_0000679 gland A gland in the maxilla, discharging secretion through a small field patch of pores, usually on the dorsal side of the endite, sometimes on its mesal surface. http://purl.obolibrary.org/obo/SPD_0000201 base of aciniform gland spigot of posterior lateral spinneret http://purl.obolibrary.org/obo/SPD_0000147 spigot base The base of an aciniform gland spigot of posterior lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000204 female palpal tarsus dorsal chemosensory seta http://purl.obolibrary.org/obo/SPD_0000286 chemosensory seta Each of the chemosensory setae on the female palpal tarsus. http://purl.obolibrary.org/obo/SPD_0000205 retrocoxal hymen 1 http://purl.obolibrary.org/obo/SPD_0000570 retrocoxal hymen The retrocoxal hymen of leg 1. http://purl.obolibrary.org/obo/SPD_0000206 base of cylindrical gland spigot of posterior lateral spinneret http://purl.obolibrary.org/obo/SPD_0000147 spigot base The base of a cylindrical gland spigot of the posterior lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000207 shaft of cylindrical gland spigot of posterior lateral spinneret http://purl.obolibrary.org/obo/SPD_0000153 spigot shaft The shaft of a cylindrical gland spigot of the posterior lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000208 shaft of modified gland spigot of posterior lateral spinneret http://purl.obolibrary.org/obo/SPD_0000153 spigot shaft The shaft of a modified gland spigot of posterior lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000209 base of modified gland spigot of posterior lateral spinneret http://purl.obolibrary.org/obo/SPD_0000147 spigot base The base of the modified gland spigot of posterior lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000210 base of paracribellar gland spigot of posterior lateral spinneret http://purl.obolibrary.org/obo/SPD_0000147 spigot base The base of a paracribellar gland spigot of the posterior lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000211 shaft of paracribellar gland spigot of posterior lateral spinneret http://purl.obolibrary.org/obo/SPD_0000153 spigot shaft The shaft of a paracribellar gland spigot of the posterior lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000212 shaft of gland spigot of posterior lateral spinneret http://purl.obolibrary.org/obo/SPD_0000153 spigot shaft The shaft of a gland spigot on the posterior lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000213 base of gland spigot of posterior lateral spinneret http://purl.obolibrary.org/obo/SPD_0000147 spigot base The base of a gland spigot on the posterior lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000214 aggregate gland spigot http://purl.obolibrary.org/obo/SPD_0000364 spigot A flanking spigot in the triad of araneoid spiders. It extrudes a viscid silk used in the wet adhesive threads. http://purl.obolibrary.org/obo/SPD_0000219 scopular seta http://purl.obolibrary.org/obo/SPD_0000491 tenent seta Tenent seta on ventral or lateral surfaces on appendages. http://purl.obolibrary.org/obo/SPD_0000220 socket of scopular seta http://purl.obolibrary.org/obo/SPD_0000360 setal socket The socket of the scopular seta. http://purl.obolibrary.org/obo/SPD_0000221 tenent barb of scopular seta http://purl.obolibrary.org/obo/SPD_0000489 tenent barb Each of the barbs with expanded tips on the tenent surface of the scopular seta. http://purl.obolibrary.org/obo/SPD_0000222 claw tuft seta http://purl.obolibrary.org/obo/SPD_0000491 tenent seta Each of the tenent setae composing the claw tuft. http://purl.obolibrary.org/obo/SPD_0000224 tenent barb of claw tuft seta http://purl.obolibrary.org/obo/SPD_0000489 tenent barb Each of the barbs with expanded tips on the tenent surface of the claw tuft seta. http://purl.obolibrary.org/obo/SPD_0000225 proclaw 1 http://purl.obolibrary.org/obo/SPD_0000383 proclaw A proclaw on leg 1. http://purl.obolibrary.org/obo/SPD_0000226 retroclaw 1 http://purl.obolibrary.org/obo/SPD_0000384 retroclaw A retroclaw on leg 1. http://purl.obolibrary.org/obo/SPD_0000227 inferior claw 1 http://purl.obolibrary.org/obo/SPD_0000385 inferior claw An inferior claw on leg 1. http://purl.obolibrary.org/obo/SPD_0000228 proclaw 2 http://purl.obolibrary.org/obo/SPD_0000383 proclaw A proclaw on leg 2. http://purl.obolibrary.org/obo/SPD_0000229 retroclaw 2 http://purl.obolibrary.org/obo/SPD_0000384 retroclaw A retroclaw on leg 2. http://purl.obolibrary.org/obo/SPD_0000230 inferior claw 2 http://purl.obolibrary.org/obo/SPD_0000385 inferior claw An inferior claw on leg 2. http://purl.obolibrary.org/obo/SPD_0000231 proclaw 3 http://purl.obolibrary.org/obo/SPD_0000383 proclaw A proclaw on leg 3. http://purl.obolibrary.org/obo/SPD_0000232 retroclaw 3 http://purl.obolibrary.org/obo/SPD_0000384 retroclaw A retroclaw on leg 3. http://purl.obolibrary.org/obo/SPD_0000233 inferior claw 3 http://purl.obolibrary.org/obo/SPD_0000385 inferior claw An inferior claw on leg 3. http://purl.obolibrary.org/obo/SPD_0000234 proclaw 4 http://purl.obolibrary.org/obo/SPD_0000383 proclaw A proclaw on leg 4. http://purl.obolibrary.org/obo/SPD_0000235 retroclaw 4 http://purl.obolibrary.org/obo/SPD_0000384 retroclaw A retroclaw on leg 4. http://purl.obolibrary.org/obo/SPD_0000236 inferior claw 4 http://purl.obolibrary.org/obo/SPD_0000385 inferior claw An inferior claw on leg 4. http://purl.obolibrary.org/obo/SPD_0000237 calamistrum http://purl.obolibrary.org/obo/SPD_0000490 cluster of setae A patch of curved thick setae, usually arranged in one or more rows, on the dorsal-retrolateral side along metatarsus IV of cribellate spiders. It is used for combing out silk from the cribellum. http://purl.obolibrary.org/obo/SPD_0000238 calamistrum seta http://purl.obolibrary.org/obo/SPD_0000359 seta Each of the individual setae composing the calamistrum. http://purl.obolibrary.org/obo/SPD_0000240 tarsal setal comb 4 http://purl.obolibrary.org/obo/SPD_0000490 cluster of setae A comb of thick setae on tarsus 4. http://purl.obolibrary.org/obo/SPD_0000241 female palp femoral thorn http://purl.obolibrary.org/obo/SPD_0000641 palpal femoral thorn A palpal femoral thorn on the female palp. http://purl.obolibrary.org/obo/SPD_0000242 lyra http://purl.obolibrary.org/obo/SPD_0000684 stridulatory organ A cluster of thick setae on the side of the endite, the chelicera or the coxa I, used for stridulation. http://purl.obolibrary.org/obo/SPD_0000243 base of aciniform gland spigot of posterior median spinneret http://purl.obolibrary.org/obo/SPD_0000147 spigot base The base of an aciniform gland spigot of posterior median spinneret. http://purl.obolibrary.org/obo/SPD_0000244 shaft of aciniform gland spigot of posterior median spinneret http://purl.obolibrary.org/obo/SPD_0000153 spigot shaft The shaft of an aciniform gland spigot on the posterior median spinneret. http://purl.obolibrary.org/obo/SPD_0000245 base of cylindrical gland spigot of posterior median spinneret http://purl.obolibrary.org/obo/SPD_0000573 base of cylindrical gland spigot The base of a cylindrical gland spigot of the posterior median spinneret. http://purl.obolibrary.org/obo/SPD_0000248 anterior booklung leaf http://purl.obolibrary.org/obo/SPD_0000430 booklung leaf A leaf of the anterior booklung. http://purl.obolibrary.org/obo/SPD_0000250 shaft of cylindrical gland spigot of posterior median spinneret http://purl.obolibrary.org/obo/SPD_0000153 spigot shaft The shaft of a cylindrical gland spigot of the posterior median spinneret. http://purl.obolibrary.org/obo/SPD_0000254 major ampullate gland spigot http://purl.obolibrary.org/obo/SPD_0000368 ampullate gland spigot Each of the large spigots on the anterior lateral spinnerets, used for draglines and structural threads. http://purl.obolibrary.org/obo/SPD_0000256 sensillum of major ampullate field http://purl.obolibrary.org/obo/SPD_0000511 strain sensillum of cuticle A cuticle strain sensor on the major ampullate field. These receptors are found at the base of the spigots of the major ampullate glands which produce the dragline used by the spider as a safety thread in various behavioral situations. They are likely to provide information on the forces pulling on the dragline and also on its orientation in space. A single sensillum consists of a hole in the cuticle covered by a thin cuticular membrane. It much resembles spider slit sensilla, which are known to detect strains in the exoskeleton. Each sensillum is supplied by two dendrites most likely belonging to two bipolar sensory cells. One of the dendrites ends at the covering membrane and the other more proximally. The sensilla are arranged with their long axes roughly parallel to the circumference of the spigots. External forces, transmitted by the dragline, result in deformation of the central part of the cuticular plate at the base of the spigots and thus in stimulation of the sensilla. Considering their morphology, topography, and electrophysiology, these mechanoreceptors are suggested to be important in the sensory control of dragline release by the spider. http://purl.obolibrary.org/obo/SPD_0000257 piriform gland spigot http://purl.obolibrary.org/obo/SPD_0000364 spigot Each of the many spigots on the anterior lateral spinnerets, used to cement the attachment of ampullate threads to each other and to the substratum. The cemented attachment is known as attachment disk. http://purl.obolibrary.org/obo/SPD_0000258 spigot of posterior median spinneret http://purl.obolibrary.org/obo/SPD_0000364 spigot A spigot on the posterior median spinneret. http://purl.obolibrary.org/obo/SPD_0000259 minor ampullate gland spigot http://purl.obolibrary.org/obo/SPD_0000368 ampullate gland spigot An ampullate gland spigot on the posterior median spinneret. http://purl.obolibrary.org/obo/SPD_0000260 aciniform gland spigot of posterior median spinneret http://purl.obolibrary.org/obo/SPD_0000365 aciniform gland spigot A aciniform gland spigot located on a posterior median spinneret. http://purl.obolibrary.org/obo/SPD_0000261 cylindrical gland spigot of posterior median spinneret http://purl.obolibrary.org/obo/SPD_0000367 cylindrical gland spigot A cylindrical gland spigot on the posterior median spinneret. http://purl.obolibrary.org/obo/SPD_0000262 aciniform gland spigot of posterior lateral spinneret http://purl.obolibrary.org/obo/SPD_0000365 aciniform gland spigot A aciniform gland spigot located on a posterior lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000263 cylindrical gland spigot of posterior lateral spinneret http://purl.obolibrary.org/obo/SPD_0000367 cylindrical gland spigot A cylindrical gland spigot on the posterior lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000264 modified gland spigot of posterior lateral spinneret http://purl.obolibrary.org/obo/SPD_0000277 spigot of posterior lateral spinneret A relatively large spigot, usually forming part of a triad in the posterior lateral spinnerets. http://purl.obolibrary.org/obo/SPD_0000265 paracribellar gland spigot of posterior lateral spinneret http://purl.obolibrary.org/obo/SPD_0000369 paracribellar gland spigot A paracribellar gland spigot located on the posterior lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000267 paracribellar gland spigot of posterior median spinneret http://purl.obolibrary.org/obo/SPD_0000369 paracribellar gland spigot A paracribellar gland spigot located on the posterior median spinneret. http://purl.obolibrary.org/obo/SPD_0000269 sperm outlet http://purl.obolibrary.org/obo/SPD_0000691 anatomical space The orifice on the embolus tip where the spermophor discharges. http://purl.obolibrary.org/obo/SPD_0000270 male palpal femoral thorn http://purl.obolibrary.org/obo/SPD_0000641 palpal femoral thorn A palpal femoral thorn on the male palp. http://purl.obolibrary.org/obo/SPD_0000271 socket of male palpal femoral thorn http://purl.obolibrary.org/obo/SPD_0000360 setal socket The socket of the palpal femoral thorn. http://purl.obolibrary.org/obo/SPD_0000272 base of minor ampullate gland spigot http://purl.obolibrary.org/obo/SPD_0000147 spigot base The base of the minor ampullate gland spigot. http://purl.obolibrary.org/obo/SPD_0000273 shaft of minor ampullate gland spigot of posterior median spinneret http://purl.obolibrary.org/obo/SPD_0000153 spigot shaft The shaft of the minor ampullate gland spigot. http://purl.obolibrary.org/obo/SPD_0000276 cribellar spigot http://purl.obolibrary.org/obo/SPD_0000364 spigot Each of the many gland spigots on the cribellum. They produce an adhesive mat of very thin dry fibrils. http://purl.obolibrary.org/obo/SPD_0000277 spigot of posterior lateral spinneret http://purl.obolibrary.org/obo/SPD_0000364 spigot A spigot on the posterior lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000279 base of paracribellar gland spigot of posterior median spinneret http://purl.obolibrary.org/obo/SPD_0000147 spigot base The base of a paracribellar gland spigot on the posterior median spinneret. http://purl.obolibrary.org/obo/SPD_0000281 shaft of paracribellar gland spigot of posterior median spinneret http://purl.obolibrary.org/obo/SPD_0000153 spigot shaft The shaft of a paracribellar gland spigot on the posterior median spinneret. http://purl.obolibrary.org/obo/SPD_0000282 epigastric furrow posterior apodeme http://purl.obolibrary.org/obo/SPD_0000504 apodeme An apodeme arising from the posterior wall of the epigastric furrow. These apodemes are usually placed on invaginations or folds of the cuticle. http://purl.obolibrary.org/obo/SPD_0000286 chemosensory seta http://purl.obolibrary.org/obo/SPD_0000650 sensory organ A sensory seta with an open tip. They are usually inervated by 21 neurons, two of them mechanosensitive and restricted to the base, and 19 chemosensitive, with their dentrites extending into the shaft, and ending in the distal pore. http://purl.obolibrary.org/obo/SPD_0000287 labral tongue http://purl.obolibrary.org/obo/SPD_0000663 sclerite A flat sclerite with a distal free end on the dorsal side of the labrum of araneomorph spiders (except Hypochilus). http://purl.obolibrary.org/obo/SPD_0000290 labial sigilla http://purl.obolibrary.org/obo/SPD_0000330 sigilla A sigilla on the posterior lateral corner of the labium, where an extension of the endosternite attaches. http://purl.obolibrary.org/obo/SPD_0000291 sternum http://purl.obolibrary.org/obo/SPD_0000663 sclerite The ventral sclerite of the prosoma. http://purl.obolibrary.org/obo/SPD_0000292 sternal sigilla http://purl.obolibrary.org/obo/SPD_0000330 sigilla A sigilla on the lateral of sternum, where an extension of the endosternite attaches. http://purl.obolibrary.org/obo/SPD_0000293 base of gland spigot of posterior median spinneret http://purl.obolibrary.org/obo/SPD_0000147 spigot base The base of a gland spigot on the posterior median spinneret. http://purl.obolibrary.org/obo/SPD_0000294 shaft of gland spigot of posterior median spinneret http://purl.obolibrary.org/obo/SPD_0000153 spigot shaft The shaft of a gland spigot on the posterior median spinneret. http://purl.obolibrary.org/obo/SPD_0000297 base of aggregate gland spigot http://purl.obolibrary.org/obo/SPD_0000147 spigot base The base of the aggregate gland spigot. http://purl.obolibrary.org/obo/SPD_0000298 shaft of aggregate gland spigot http://purl.obolibrary.org/obo/SPD_0000153 spigot shaft The shaft of the aggregate gland spigot. http://purl.obolibrary.org/obo/SPD_0000299 superior claw 1 http://purl.obolibrary.org/obo/SPD_0000382 superior claw A superior claw on leg 1. http://purl.obolibrary.org/obo/SPD_0000301 vertical intercoxal bar http://purl.obolibrary.org/obo/SPD_0000663 sclerite A small horizontal sclerite on the pleural area that may occur between two coxae. http://purl.obolibrary.org/obo/SPD_0000302 pleural bar http://purl.obolibrary.org/obo/SPD_0000663 sclerite Each of the small horizontal sclerites on the pleural area, between the coxae and the carapace. http://purl.obolibrary.org/obo/SPD_0000308 maxillary cusple http://purl.obolibrary.org/obo/SPD_0000346 cusple A cusple on the endites of some Mygalomorphae. http://purl.obolibrary.org/obo/SPD_0000309 opisthosomal dorsal sigilla http://purl.obolibrary.org/obo/SPD_0000330 sigilla The sigilla on the dorsum of the opisthosoma, where a dorso-ventral opisthosomal muscle inserts. http://purl.obolibrary.org/obo/SPD_0000310 tarsal organ http://purl.obolibrary.org/obo/SPD_0000650 sensory organ A hygroreceptor and thermosensory organ situated on the dorsal side of the leg and palpal tarsi. http://purl.obolibrary.org/obo/SPD_0000311 scopula http://purl.obolibrary.org/obo/SPD_0000490 cluster of setae A group of tenent setae covering surfaces on appendages. Do not confuse with the generic use as a brush of unspecified setae. http://purl.obolibrary.org/obo/SPD_0000312 claw tuft http://purl.obolibrary.org/obo/SPD_0000490 cluster of setae A paired cluster of tenent setae on the feet of many vagrant spiders, which may arise from a patch solidly integrated with the surrounding cuticle or may be inserted on an articulate plate (the claw tuft plate). http://purl.obolibrary.org/obo/SPD_0000313 trichobothria http://purl.obolibrary.org/obo/SPD_0000650 sensory organ A sensory seta on the dorsal surfaces of legs and palps, specialized in detecting air movement. The setal shaft is slender, perpendicular to the cuticle surface, usually curved backwards and longer than the neighboring setae. Trichobothria are typically disposed in longitudinal series of distally increasing length. http://purl.obolibrary.org/obo/SPD_0000314 superior claw 2 http://purl.obolibrary.org/obo/SPD_0000382 superior claw A superior claw on leg 2. http://purl.obolibrary.org/obo/SPD_0000315 macroseta http://purl.obolibrary.org/obo/SPD_0000650 sensory organ A large articulated seta, with thick and long shaft and robust socket. Macrosetae are inervated by three neurons and become erected when the hemolymph pressure increases. Nerve impulses are generated only during the erection phase. They occur mainly on appendages, but sometimes similar setae occur on the opisthosoma as well. http://purl.obolibrary.org/obo/SPD_0000316 cymbial retrolateral-medial process http://purl.obolibrary.org/obo/SPD_0000524 process of cymbium A process on the retrolateral margin of the cymbium, midway between the base and the tip. http://purl.obolibrary.org/obo/SPD_0000318 silk structure http://purl.obolibrary.org/obo/SPD_0000008 portion of organism substance A structure made of silk fibers or glue. http://purl.obolibrary.org/obo/SPD_0000321 dragline http://purl.obolibrary.org/obo/SPD_0000053 silk cable A silk cable of major ampullate fibers. http://purl.obolibrary.org/obo/SPD_0000324 sticky composed line http://purl.obolibrary.org/obo/SPD_0000053 silk cable The sticky line composed by dry axial fibers and a viscous glue as in the araneoid spiral. http://purl.obolibrary.org/obo/SPD_0000327 egg http://purl.obolibrary.org/obo/SPD_0000742 gamete A female gamete where meiosis has progressed to metaphase II and is able to participate in fertilization. http://purl.obolibrary.org/obo/SPD_0000328 anterior booklung spiracle http://purl.obolibrary.org/obo/SPD_0000429 booklung spiracle The spiracle of the anterior booklung. http://purl.obolibrary.org/obo/SPD_0000329 venom gland http://purl.obolibrary.org/obo/SPD_0000679 gland The gland on the chelicera or carapace that produced the venom injected through the fang. http://purl.obolibrary.org/obo/SPD_0000333 superior claw 3 http://purl.obolibrary.org/obo/SPD_0000382 superior claw A superior claw on leg 3. http://purl.obolibrary.org/obo/SPD_0000334 superior claw 4 http://purl.obolibrary.org/obo/SPD_0000382 superior claw A superior claw on leg 4. http://purl.obolibrary.org/obo/SPD_0000335 palp http://purl.obolibrary.org/obo/SPD_0000651 appendage Appendage of prosoma, between the chelicerae and leg I. http://purl.obolibrary.org/obo/SPD_0000342 indirect eye http://purl.obolibrary.org/obo/SPD_0000015 eye An eye where the retina receives the light indirectly, reflected by the tapetum. Indirect eyes usually appear shiny. Most commonly all eyes except the anterior medians are indirect, but the tapetum is lost in several families, such as Salticidae. Philodromidae and Eresidae. http://purl.obolibrary.org/obo/SPD_0000344 postembryo http://purl.obolibrary.org/obo/SPD_0000001 multi-cellular organism A generic term for pre-hatching stages. http://purl.obolibrary.org/obo/SPD_0000346 cusple http://purl.obolibrary.org/obo/SPD_0000315 macroseta Very short macroseta, often with a blunt tip. http://purl.obolibrary.org/obo/SPD_0000348 bothrium http://purl.obolibrary.org/obo/SPD_0000360 setal socket The socket of the trichobothria. http://purl.obolibrary.org/obo/SPD_0000349 trichobothria shaft http://purl.obolibrary.org/obo/SPD_0000046 setal shaft The shaft of the trichobothria. http://purl.obolibrary.org/obo/SPD_0000350 socket of macroseta http://purl.obolibrary.org/obo/SPD_0000360 setal socket The socket of the macroseta. http://purl.obolibrary.org/obo/SPD_0000354 tibial gland http://purl.obolibrary.org/obo/SPD_0000679 gland A gland located in the tibia of leg 1. http://purl.obolibrary.org/obo/SPD_0000357 opisthosomal tergite http://purl.obolibrary.org/obo/SPD_0000663 sclerite The dorsal sclerite corresponding to a segment in the opisthosoma. http://purl.obolibrary.org/obo/SPD_0000358 opisthosomal sternite http://purl.obolibrary.org/obo/SPD_0000663 sclerite The ventral sclerite corresponding to a segment in the opisthosoma. http://purl.obolibrary.org/obo/SPD_0000361 urticating hair http://purl.obolibrary.org/obo/SPD_0000359 seta A specialized seta of some Theraphosidae spiders, with a basal breakage zone. The detached setae are transported by air or by contact and urticate the mammal skin. http://purl.obolibrary.org/obo/SPD_0000365 aciniform gland spigot http://purl.obolibrary.org/obo/SPD_0000364 spigot Each of the small spigots on the posterior spinnerets. They extrude thin fibrils used to cover surfaces, such as the wrapping of preys, lining of silken cells, some layers in eggsacs. http://purl.obolibrary.org/obo/SPD_0000366 pumpkiniform spigot http://purl.obolibrary.org/obo/SPD_0000364 spigot A spigot found in some Mygalomorphae, with a globose base with striae, as in a pumpkin. http://purl.obolibrary.org/obo/SPD_0000367 cylindrical gland spigot http://purl.obolibrary.org/obo/SPD_0000364 spigot Each of the large spigots on the posterior spinnerets, occurring only in adult females. They extrude a silk used for some layers of the eggsac, probably used to regulate humidity. http://purl.obolibrary.org/obo/SPD_0000368 ampullate gland spigot http://purl.obolibrary.org/obo/SPD_0000364 spigot A large spigot on the anterior lateral of posterior median spinnerets, extruding resistant fibers. http://purl.obolibrary.org/obo/SPD_0000369 paracribellar gland spigot http://purl.obolibrary.org/obo/SPD_0000364 spigot Each of the spigots on the posterior spinnerets of some cribellate spiders, with a shaft similar to those of cribellar spigots, strobilate except in Filistatidae. http://purl.obolibrary.org/obo/SPD_0000371 scopular seta shaft http://purl.obolibrary.org/obo/SPD_0000046 setal shaft The shaft of a scopular seta. http://purl.obolibrary.org/obo/SPD_0000372 leg http://purl.obolibrary.org/obo/SPD_0000651 appendage Any of the four appendages of prosoma, behind the palp. http://purl.obolibrary.org/obo/SPD_0000373 coxa http://purl.obolibrary.org/obo/SPD_0000822 podomere The basal, 1st segment of the leg. It articulates with the trochanter through a prolateral ball-socket articulation. http://purl.obolibrary.org/obo/SPD_0000374 trochanter http://purl.obolibrary.org/obo/SPD_0000822 podomere Second segment of the leg, between the coxa and femur. It articulates with the femur through a pair of lateral condyles. http://purl.obolibrary.org/obo/SPD_0000375 femur http://purl.obolibrary.org/obo/SPD_0000822 podomere The 3rd segment of the leg, between trochanter and patella. It articulates with the patella through a pair of dorsal-lateral condyles. http://purl.obolibrary.org/obo/SPD_0000376 patella http://purl.obolibrary.org/obo/SPD_0000822 podomere The 4th segment of the leg, between femur and tibia. It articulates with the tibia through a medial dorsal condyle. http://purl.obolibrary.org/obo/SPD_0000377 tibia http://purl.obolibrary.org/obo/SPD_0000822 podomere The 5th segment of the leg, between patella and metatarsus. It articulates with the metatarsus through a pair of dorsal-lateral condyles. http://purl.obolibrary.org/obo/SPD_0000378 metatarsus http://purl.obolibrary.org/obo/SPD_0000823 pseudopodomere The 6th segment of the leg, between tibia and tarsus. It articulates with the tarsus through free joint without condyles. http://purl.obolibrary.org/obo/SPD_0000379 tarsus http://purl.obolibrary.org/obo/SPD_0000823 pseudopodomere The 7th segment of the leg, between the metatarsus and the pretarsus. It articulates with the pretarsus through a pair of lateral condyles. http://purl.obolibrary.org/obo/SPD_0000380 podotarsite http://purl.obolibrary.org/obo/SPD_0000693 tarsal pseudosegment The most apical pseudopodomere of the tarsus, delimited by a membrane in place of the foot slit suture. The membrane extends from each side to meet dorsally and thus forms an additional joint. Only some araneomorph spiders such as several Synspermiata or palpimanoids have an articulate podotarsite. http://purl.obolibrary.org/obo/SPD_0000381 claw http://purl.obolibrary.org/obo/SPD_0000456 acellular anatomical structure A hook-shaped sclerotized structure arising from the leg or palpal pretarsus. http://purl.obolibrary.org/obo/SPD_0000382 superior claw http://purl.obolibrary.org/obo/SPD_0000381 claw Each of the paired leg tarsal claws. http://purl.obolibrary.org/obo/SPD_0000383 proclaw http://purl.obolibrary.org/obo/SPD_0000382 superior claw The prolateral superior claw. http://purl.obolibrary.org/obo/SPD_0000384 retroclaw http://purl.obolibrary.org/obo/SPD_0000382 superior claw The retrolateral superior claw. http://purl.obolibrary.org/obo/SPD_0000385 inferior claw http://purl.obolibrary.org/obo/SPD_0000381 claw The median, unpaired claw located apically on the leg pretarsus. http://purl.obolibrary.org/obo/SPD_0000392 direct eye http://purl.obolibrary.org/obo/SPD_0000015 eye An eye where the retina receives the light directly, as opposed to being reflected by a tapetum. http://purl.obolibrary.org/obo/SPD_0000393 anterior median eye lens http://purl.obolibrary.org/obo/SPD_0000397 eye lens The lens of the anterior median eye. http://purl.obolibrary.org/obo/SPD_0000394 anterior lateral eye lens http://purl.obolibrary.org/obo/SPD_0000397 eye lens The lens of the anterior lateral eye. http://purl.obolibrary.org/obo/SPD_0000395 posterior lateral eye lens http://purl.obolibrary.org/obo/SPD_0000397 eye lens The lens of the posterior lateral eye. http://purl.obolibrary.org/obo/SPD_0000396 posterior median eye lens http://purl.obolibrary.org/obo/SPD_0000397 eye lens The lens of the posterior lateral eye. http://purl.obolibrary.org/obo/SPD_0000400 tactile hair http://purl.obolibrary.org/obo/SPD_0000650 sensory organ A medium-sized seta with curved shaft, usually with barbs, inervated by three neurons. This is the most frequent and widespread kind of seta. http://purl.obolibrary.org/obo/SPD_0000402 scale http://purl.obolibrary.org/obo/SPD_0000359 seta A seta with a small socket, bent in angle immediately after its insertion, so that it lies parallel to the cuticular surface. Scales lack innervation. They can have a wide variety of shapes, including feathery, cylindrical, and flat. http://purl.obolibrary.org/obo/SPD_0000403 labial cusple http://purl.obolibrary.org/obo/SPD_0000346 cusple A cusple on the labium of some Mygalomorphae. http://purl.obolibrary.org/obo/SPD_0000408 Ac silk fiber http://purl.obolibrary.org/obo/SPD_0000054 silk fiber A silk fiber produced through an aciniform gland spigot. http://purl.obolibrary.org/obo/SPD_0000409 maAmp silk fiber http://purl.obolibrary.org/obo/SPD_0000054 silk fiber A silk fiber produced through a major ampullate gland spigot. http://purl.obolibrary.org/obo/SPD_0000410 miAmp silk fiber http://purl.obolibrary.org/obo/SPD_0000054 silk fiber A silk fiber produced through a minor ampullate gland spigot. http://purl.obolibrary.org/obo/SPD_0000411 PC silk fiber http://purl.obolibrary.org/obo/SPD_0000054 silk fiber A silk fiber produced through a paracribellar gland spigot. http://purl.obolibrary.org/obo/SPD_0000412 MS silk fiber http://purl.obolibrary.org/obo/SPD_0000054 silk fiber A silk fiber produced through a modified gland spigot. http://purl.obolibrary.org/obo/SPD_0000413 Cy silk fiber http://purl.obolibrary.org/obo/SPD_0000054 silk fiber A silk fiber produced through a cylindrical gland spigot. http://purl.obolibrary.org/obo/SPD_0000414 Pi silk fiber http://purl.obolibrary.org/obo/SPD_0000054 silk fiber A silk fiber with glue coating produced through a piriform gland spigot. http://purl.obolibrary.org/obo/SPD_0000415 cribellar silk fiber http://purl.obolibrary.org/obo/SPD_0000054 silk fiber A silk fiber produced through a cribellar gland spigot. http://purl.obolibrary.org/obo/SPD_0000416 flagelliform gland spigot http://purl.obolibrary.org/obo/SPD_0000364 spigot A modified gland spigot in araneoids. http://purl.obolibrary.org/obo/SPD_0000417 pseudoflagelliform gland spigot http://purl.obolibrary.org/obo/SPD_0000364 spigot A modified gland spigot in deinopoids. http://purl.obolibrary.org/obo/SPD_0000418 base of flagelliform gland spigot http://purl.obolibrary.org/obo/SPD_0000209 base of modified gland spigot of posterior lateral spinneret The base of the flagelliform gland spigot. http://purl.obolibrary.org/obo/SPD_0000419 shaft of flagelliform gland spigot http://purl.obolibrary.org/obo/SPD_0000208 shaft of modified gland spigot of posterior lateral spinneret The shaft of the flagelliform gland spigot. http://purl.obolibrary.org/obo/SPD_0000420 base of pseudoflagelliform gland spigot http://purl.obolibrary.org/obo/SPD_0000209 base of modified gland spigot of posterior lateral spinneret The base of the pseudoflagelliform gland spigot. http://purl.obolibrary.org/obo/SPD_0000421 shaft of pseudoflagelliform gland spigot http://purl.obolibrary.org/obo/SPD_0000208 shaft of modified gland spigot of posterior lateral spinneret The shaft of the pseudoflagelliform gland spigot. http://purl.obolibrary.org/obo/SPD_0000422 opisthosomal segment 1 http://purl.obolibrary.org/obo/SPD_0000055 opisthosomal segment The opisthosomal segment between carapace and epigastrium. http://purl.obolibrary.org/obo/SPD_0000423 opisthosomal segment 2 http://purl.obolibrary.org/obo/SPD_0000055 opisthosomal segment The opisthosomal segment between the pedicel and the epigastric furrow. http://purl.obolibrary.org/obo/SPD_0000424 opisthosomal segment 3 http://purl.obolibrary.org/obo/SPD_0000055 opisthosomal segment The opisthosomal segment between the epigastric furrow and the spinnerets. http://purl.obolibrary.org/obo/SPD_0000425 opisthosomal segment 4 http://purl.obolibrary.org/obo/SPD_0000055 opisthosomal segment The opisthosomal segment bearing the anterior spinnerets. http://purl.obolibrary.org/obo/SPD_0000426 opisthosomal segment 5 http://purl.obolibrary.org/obo/SPD_0000055 opisthosomal segment The opisthosomal segment bearing the posterior spinnerets. http://purl.obolibrary.org/obo/SPD_0000429 booklung spiracle http://purl.obolibrary.org/obo/SPD_0000683 spiracle The external opening leading to the booklung atrium. http://purl.obolibrary.org/obo/SPD_0000432 posterior booklung atrium http://purl.obolibrary.org/obo/SPD_0000431 booklung atrium The atrium of the posterior booklung. http://purl.obolibrary.org/obo/SPD_0000433 anterior booklung atrium http://purl.obolibrary.org/obo/SPD_0000431 booklung atrium The atrium of the anterior booklung. http://purl.obolibrary.org/obo/SPD_0000434 trachea http://purl.obolibrary.org/obo/SPD_0000781 integumental tube A tracheal structure with tubular shape. http://purl.obolibrary.org/obo/SPD_0000435 tracheal spiracle http://purl.obolibrary.org/obo/SPD_0000683 spiracle The opening of a trachea to the exterior. http://purl.obolibrary.org/obo/SPD_0000439 opisthosomal entapophysis http://purl.obolibrary.org/obo/SPD_0000504 apodeme A ventral paired apodeme on the posterior end of the opisthosomal segment. http://purl.obolibrary.org/obo/SPD_0000443 epigastric median trachea http://purl.obolibrary.org/obo/SPD_0000440 anterior respiratory system A tracheal tube arising from the interpulmonary fold in the 2nd segment. http://purl.obolibrary.org/obo/SPD_0000450 pretarsus http://purl.obolibrary.org/obo/SPD_0000822 podomere The 8th, most distal article of the leg, articulated with the tarsus and bearing the claws. http://purl.obolibrary.org/obo/SPD_0000451 leg article http://purl.obolibrary.org/obo/SPD_0000669 article Segment on the leg, connected to other articles or to prosoma by articulate joints. http://purl.obolibrary.org/obo/SPD_0000452 pretarsus 1 http://purl.obolibrary.org/obo/SPD_0000450 pretarsus The pretarsus of leg 1. http://purl.obolibrary.org/obo/SPD_0000453 pretarsus 2 http://purl.obolibrary.org/obo/SPD_0000450 pretarsus The pretarsus of leg 2. http://purl.obolibrary.org/obo/SPD_0000454 pretarsus 3 http://purl.obolibrary.org/obo/SPD_0000450 pretarsus The pretarsus of leg 3. http://purl.obolibrary.org/obo/SPD_0000455 pretarsus 4 http://purl.obolibrary.org/obo/SPD_0000450 pretarsus The pretarsus of leg 4. http://purl.obolibrary.org/obo/SPD_0000456 acellular anatomical structure http://purl.obolibrary.org/obo/SPD_0000675 anatomical structure Anatomical structure that consists of cell parts and cell substances and together does not constitute a cell or a tissue. http://purl.obolibrary.org/obo/SPD_0000457 plagula ventralis http://purl.obolibrary.org/obo/SPD_0000663 sclerite A small sclerite on the fang articulation, where the fang flexor tendon inserts. http://purl.obolibrary.org/obo/SPD_0000459 claw tuft seta shaft http://purl.obolibrary.org/obo/SPD_0000046 setal shaft The shaft of the claw tuft seta. http://purl.obolibrary.org/obo/SPD_0000460 socket of claw tuft seta http://purl.obolibrary.org/obo/SPD_0000360 setal socket The socket of the claw tuft seta. http://purl.obolibrary.org/obo/SPD_0000463 cuticle sculpture cell http://purl.obolibrary.org/obo/SPD_0000825 cuticular structure Each of the discrete cells in the cuticular sculpture of rigid surfaces in spiders such as some Araneoidea. http://purl.obolibrary.org/obo/SPD_0000465 claw lever 1 http://purl.obolibrary.org/obo/SPD_0000464 claw lever The claw lever of leg 1. http://purl.obolibrary.org/obo/SPD_0000466 claw lever 2 http://purl.obolibrary.org/obo/SPD_0000464 claw lever The claw lever of leg 2. http://purl.obolibrary.org/obo/SPD_0000467 claw lever 3 http://purl.obolibrary.org/obo/SPD_0000464 claw lever The claw lever of leg 3. http://purl.obolibrary.org/obo/SPD_0000468 claw lever 4 http://purl.obolibrary.org/obo/SPD_0000464 claw lever The claw lever of leg 4. http://purl.obolibrary.org/obo/SPD_0000470 promarginal escort seta http://purl.obolibrary.org/obo/SPD_0000563 cheliceral escort seta The cheliceral escort seta on the promargin. http://purl.obolibrary.org/obo/SPD_0000471 retromarginal escort seta http://purl.obolibrary.org/obo/SPD_0000563 cheliceral escort seta The cheliceral escort seta on the retromargin. http://purl.obolibrary.org/obo/SPD_0000473 palpal pretarsus http://purl.obolibrary.org/obo/SPD_0000822 podomere The 7th, most distal article of the female palp, articulated with the tarsus and containing the claw. http://purl.obolibrary.org/obo/SPD_0000475 slit sensillum http://purl.obolibrary.org/obo/SPD_0000511 strain sensillum of cuticle A mechanoreceptor sensitive to strain on the cuticle. It has a linear shape with raised borders. Slit sensilla may occur in isolation or in groups of parallel sensilla, forming a lyriform organ. http://purl.obolibrary.org/obo/SPD_0000476 coxal muscle sclerite http://purl.obolibrary.org/obo/SPD_0000663 sclerite Each of the sclerites forming a ring, where the coxal and trochanter muscles insert. Upon leg autospasy, the cleavage occurs across the sclerites, thus leaving the coxal muscles intact. http://purl.obolibrary.org/obo/SPD_0000478 coxal hair plate http://purl.obolibrary.org/obo/SPD_0000650 sensory organ A group of short propiosensory setae placed at the ventral basal corners of coxae. They are reflected by the folding of the pleural membrane. http://purl.obolibrary.org/obo/SPD_0000479 lyriform organ http://purl.obolibrary.org/obo/SPD_0000650 sensory organ A propiosensor made of a group of parallel slit sensilla. http://purl.obolibrary.org/obo/SPD_0000481 vibration sense organ http://purl.obolibrary.org/obo/SPD_0000479 lyriform organ A lyriform organ placed just behind the metatarsus dorsal stopper, with slit sensilla perpendicular to the leg axis. http://purl.obolibrary.org/obo/SPD_0000484 foot slit http://purl.obolibrary.org/obo/SPD_0000475 slit sensillum A paired lateral-ventral slit sensilla at the tip of the tarsus, sensitive to vibrations. It delimits the foot. http://purl.obolibrary.org/obo/SPD_0000487 elongated pedicillate seta http://purl.obolibrary.org/obo/SPD_0000650 sensory organ Each of the several long, elongate setae, with strong socket and smooth shaft, occurring anteriorly on the opisthosoma around the pedicel. They are presumably propioceptors of the position of the opisthosoma relative to the prosoma. http://purl.obolibrary.org/obo/SPD_0000489 tenent barb http://purl.obolibrary.org/obo/SPD_0000353 setal barb A barb with expanded tip that makes contact with substratum and produces adherence through molecular forces. http://purl.obolibrary.org/obo/SPD_0000491 tenent seta http://purl.obolibrary.org/obo/SPD_0000359 seta A seta with a defined patch of tenent barbs, such as those of the scopula or claw tuft. http://purl.obolibrary.org/obo/SPD_0000492 female palpal chemosensory patch http://purl.obolibrary.org/obo/SPD_0000490 cluster of setae A patch of chemosensory setae apically on the dorsal surface of the female palpal tarsus. http://purl.obolibrary.org/obo/SPD_0000493 cymbial chemosensory patch http://purl.obolibrary.org/obo/SPD_0000490 cluster of setae A patch of chemosensory setae apically on the dorsal surface of the male palpal tarsus (cymbium). It has been shown to be sensitive to the pheromones laid by females in draglines. http://purl.obolibrary.org/obo/SPD_0000494 pseudotenent seta http://purl.obolibrary.org/obo/SPD_0000491 tenent seta A seta with intermediate morphology between tenent and tactile hair, with acute tip and tenent barbs loosely organized on the contact side but usually not forming a pad. http://purl.obolibrary.org/obo/SPD_0000495 scale shaft http://purl.obolibrary.org/obo/SPD_0000046 setal shaft The shaft of a scale. http://purl.obolibrary.org/obo/SPD_0000496 socket of scale http://purl.obolibrary.org/obo/SPD_0000360 setal socket The socket of a scale. http://purl.obolibrary.org/obo/SPD_0000498 socket of chemosensory seta http://purl.obolibrary.org/obo/SPD_0000360 setal socket The socket of the chemosensory seta. http://purl.obolibrary.org/obo/SPD_0000502 booklung atrium mesh http://purl.obolibrary.org/obo/SPD_0000433 anterior booklung atrium A mesh of cuticular extensions lining the booklung atrium and the base of booklung leaves. http://purl.obolibrary.org/obo/SPD_0000503 interpulmonary fold http://purl.obolibrary.org/obo/SPD_0000440 anterior respiratory system A fold connecting the booklung atria from each side, lined by a mesh of cuticular extensions. http://purl.obolibrary.org/obo/SPD_0000504 apodeme http://purl.obolibrary.org/obo/SPD_0000825 cuticular structure An internal prolongation of the cuticle where muscles insert. http://purl.obolibrary.org/obo/SPD_0000506 tracheole http://purl.obolibrary.org/obo/SPD_0000434 trachea A trachea of small diameter with single cuticular wall, without internal mesh. http://purl.obolibrary.org/obo/SPD_0000508 entapophysis 2 http://purl.obolibrary.org/obo/SPD_0000439 opisthosomal entapophysis The entapophysis of the second opisthosomal segment. http://purl.obolibrary.org/obo/SPD_0000509 entapophysis 4 http://purl.obolibrary.org/obo/SPD_0000439 opisthosomal entapophysis The entapophysis of the fourth opisthosomal segment. http://purl.obolibrary.org/obo/SPD_0000510 entapophysis 5 http://purl.obolibrary.org/obo/SPD_0000439 opisthosomal entapophysis The entapophysis of the fifth opisthosomal segment. http://purl.obolibrary.org/obo/SPD_0000511 strain sensillum of cuticle http://purl.obolibrary.org/obo/SPD_0000650 sensory organ A sensillum whose dendrites end on a pore in the cuticle, sensitive to its deformations. http://purl.obolibrary.org/obo/SPD_0000515 spigot end piece http://purl.obolibrary.org/obo/SPD_0000153 spigot shaft A flexible piece at the tip of the spigot shaft, delimiting the apical opening. It has been reported in the spigots of Polenecia producta (Uloboridae) but has a wider, scattered distribution in other taxa as well. http://purl.obolibrary.org/obo/SPD_0000516 opisthosomal segment 11 http://purl.obolibrary.org/obo/SPD_0000055 opisthosomal segment The opisthosomal segment bearing the anal tubercle. http://purl.obolibrary.org/obo/SPD_0000518 cuticular sheet of chemosensory seta http://purl.obolibrary.org/obo/SPD_0000499 chemosensory seta shaft A internal cuticular tube inside the chemosensory seta shaft, enclosing the dentrites, extending from the apical pore to about 2/3 of the shaft length. http://purl.obolibrary.org/obo/SPD_0000521 basal division of copulatory bulb http://purl.obolibrary.org/obo/SPD_0000520 division of copulatory bulb The division of the copulatory bulb between the basal and median hematodochae, containing the subtegulum. http://purl.obolibrary.org/obo/SPD_0000522 median division of copulatory bulb http://purl.obolibrary.org/obo/SPD_0000520 division of copulatory bulb The division of the copulatory bulb between the median and terminal hematodochae, containing the tegulum, conductor and median apophysis. http://purl.obolibrary.org/obo/SPD_0000523 radix http://purl.obolibrary.org/obo/SPD_0000663 sclerite A sclerite connecting the embolus with the tegulum through the terminal hematodocha, and containing the spermophor. http://purl.obolibrary.org/obo/SPD_0000524 process of cymbium http://purl.obolibrary.org/obo/SPD_0000661 process Any of the sclerotized processes arising in the cymbium. http://purl.obolibrary.org/obo/SPD_0000526 male palpal tibial process http://purl.obolibrary.org/obo/SPD_0000661 process A sclerotized process on the male palpal tibia. http://purl.obolibrary.org/obo/SPD_0000528 male palpal ventral-medial process http://purl.obolibrary.org/obo/SPD_0000527 male palpal femoral process A process on the middle of the ventral surface of the male palpal femur. http://purl.obolibrary.org/obo/SPD_0000529 male palpal ventral-basal process http://purl.obolibrary.org/obo/SPD_0000527 male palpal femoral process A process on the ventral surface of the male palpal femur near its base. http://purl.obolibrary.org/obo/SPD_0000530 male palpal ventral-apical process http://purl.obolibrary.org/obo/SPD_0000527 male palpal femoral process A process on the ventral surface of the male palpal femur near its distal end. http://purl.obolibrary.org/obo/SPD_0000531 male palpal patella dorsal process http://purl.obolibrary.org/obo/SPD_0000285 male palpal patellar process A process on the dorsal surface of the male palpal patella. http://purl.obolibrary.org/obo/SPD_0000532 male palpal patella retrolateral process http://purl.obolibrary.org/obo/SPD_0000285 male palpal patellar process A process on the retrolateral surface of the male palpal patella. http://purl.obolibrary.org/obo/SPD_0000533 gland of male palpal tibia http://purl.obolibrary.org/obo/SPD_0000679 gland A gland inside the male palpal tibia, discharging through a pore on a tibial process. Has been found in some Spartaeinae (Saliticidae) and Macrobuninae (Amaurobiidae). http://purl.obolibrary.org/obo/SPD_0000535 apical cymbial groove http://purl.obolibrary.org/obo/SPD_0000534 groove of cymbium A ventral longitudinal groove on the tip of the cymbium. It occurs in Anyphaenidae. http://purl.obolibrary.org/obo/SPD_0000536 retrolateral cymbial groove http://purl.obolibrary.org/obo/SPD_0000534 groove of cymbium A longitudinal groove on the retrolateral surface of cymbium. It occurs in several Miturgidae. http://purl.obolibrary.org/obo/SPD_0000539 male palpal tibia dorsal basal process http://purl.obolibrary.org/obo/SPD_0000154 male palpal tibia dorsal process A proximal process on the dorsal surface of the male palpal tibia. http://purl.obolibrary.org/obo/SPD_0000540 male palpal tibia ventral apical process http://purl.obolibrary.org/obo/SPD_0000157 male palpal tibia ventral process A distal process on the ventral surface of the male palpal tibia. http://purl.obolibrary.org/obo/SPD_0000544 anterior spermatheca http://purl.obolibrary.org/obo/SPD_0000699 spermatheca A spermatheca on the anterior section of the female genitalia. http://purl.obolibrary.org/obo/SPD_0000547 mating plug http://purl.obolibrary.org/obo/SPD_0000008 portion of organism substance A hardened plug obstructing the female copulatory opening(s). The copulatory plug is secreted by the male copulatory bulb, although it may have components secreted by the female as well. http://purl.obolibrary.org/obo/SPD_0000548 gland of posterior diverticulum http://purl.obolibrary.org/obo/SPD_0000679 gland A gland discharging secretion through pores in the posterior diverticulum. http://purl.obolibrary.org/obo/SPD_0000557 gland of spermatheca http://purl.obolibrary.org/obo/SPD_0000679 gland A gland discharging secretion through pores on the spermathecal wall. http://purl.obolibrary.org/obo/SPD_0000558 female accessory gland http://purl.obolibrary.org/obo/SPD_0000679 gland A generic term for glands discharging their products into female genital elements. http://purl.obolibrary.org/obo/SPD_0000559 gland of accessory bulb http://purl.obolibrary.org/obo/SPD_0000558 female accessory gland A gland discharging through a pore on the accessory bulb. http://purl.obolibrary.org/obo/SPD_0000561 spinning field of cribellum http://purl.obolibrary.org/obo/SPD_0000363 spinning field The spinning field of the cribellum. http://purl.obolibrary.org/obo/SPD_0000562 cheliceral whisker seta http://purl.obolibrary.org/obo/SPD_0000359 seta A seta on the cheliceral paturon, densely covered by barbs as in a pipe cleaner, except at the base, which is smooth. http://purl.obolibrary.org/obo/SPD_0000563 cheliceral escort seta http://purl.obolibrary.org/obo/SPD_0000562 cheliceral whisker seta A cheliceral whisker seta arising near the articulation of the fang, bent near its base and accompanying the fang. Escort setae are usually longer than other more mesal whisker setae. http://purl.obolibrary.org/obo/SPD_0000568 anterior median eye cup http://purl.obolibrary.org/obo/SPD_0000567 eye cup The cup of the anterior median eye. http://purl.obolibrary.org/obo/SPD_0000569 anterior lateral eye cup http://purl.obolibrary.org/obo/SPD_0000567 eye cup The cup of the anterior lateral eye. http://purl.obolibrary.org/obo/SPD_0000571 shaft of aciniform gland spigot http://purl.obolibrary.org/obo/SPD_0000153 spigot shaft The shaft of the aciniform gland spigot. http://purl.obolibrary.org/obo/SPD_0000572 base of aciniform gland spigot http://purl.obolibrary.org/obo/SPD_0000147 spigot base The base of the aciniform gland spigot. http://purl.obolibrary.org/obo/SPD_0000575 gonopore http://purl.obolibrary.org/obo/SPD_0000691 anatomical space The opening of the gonads located between second and third segment of the opisthosoma. In most of the cases the gonopore is located inside the epigastric furrow. http://purl.obolibrary.org/obo/SPD_0000576 eggsac http://purl.obolibrary.org/obo/SPD_0000318 silk structure The silken sac made by the female to retain together the eggs. http://purl.obolibrary.org/obo/SPD_0000577 posterior lateral eye cup http://purl.obolibrary.org/obo/SPD_0000567 eye cup The cup of the posterior lateral eye. http://purl.obolibrary.org/obo/SPD_0000578 posterior median eye cup http://purl.obolibrary.org/obo/SPD_0000567 eye cup The cup of the posterior median eye. http://purl.obolibrary.org/obo/SPD_0000580 pedicel slit sensillum http://purl.obolibrary.org/obo/SPD_0000475 slit sensillum Each of the slit sensillum of the pedicel sensilla stripe. http://purl.obolibrary.org/obo/SPD_0000583 reproductive system http://purl.obolibrary.org/obo/SPD_0000678 anatomical system Anatomical system that has as its parts the organs concerned with reproduction. http://purl.obolibrary.org/obo/SPD_0000584 male reproductive system http://purl.obolibrary.org/obo/SPD_0000583 reproductive system The reproductive system of the adult male. http://purl.obolibrary.org/obo/SPD_0000585 female reproductive system http://purl.obolibrary.org/obo/SPD_0000583 reproductive system The reproductive system of the adult female. http://purl.obolibrary.org/obo/SPD_0000587 testis http://purl.obolibrary.org/obo/SPD_0000716 gonad The male gonad that produces and release sperm. http://purl.obolibrary.org/obo/SPD_0000588 deferent duct http://purl.obolibrary.org/obo/SPD_0000778 epithelial tube The tube connected to the distal end of the testis and opens into the proximal part of the unpaired ejaculatory duct. http://purl.obolibrary.org/obo/SPD_0000590 uterus http://purl.obolibrary.org/obo/SPD_0000778 epithelial tube The unpaired duct connecting the ovaries with the gonopore. http://purl.obolibrary.org/obo/SPD_0000592 ovary http://purl.obolibrary.org/obo/SPD_0000716 gonad Is the part of the female reproductive system which consists of generative and somatic elements. http://purl.obolibrary.org/obo/SPD_0000593 male genitalia http://purl.obolibrary.org/obo/SPD_0000677 anatomical cluster The elements of the adult male palp which are involved into sperm transfer. http://purl.obolibrary.org/obo/SPD_0000594 posterior spermatheca http://purl.obolibrary.org/obo/SPD_0000699 spermatheca A spermatheca in the posterior section of the female genitalia. It is connected to the uterus externus or posterior diverticulum by a fertilization duct. http://purl.obolibrary.org/obo/SPD_0000595 posterior fertilization duct http://purl.obolibrary.org/obo/SPD_0000700 fertilization duct The fertilization duct In the posterior section of the female genitalia, connecting with the uterus externus or posterior diverticulum. http://purl.obolibrary.org/obo/SPD_0000596 posterior copulatory duct http://purl.obolibrary.org/obo/SPD_0000701 copulatory duct A copulatory duct in the posterior section of the female genitalia. http://purl.obolibrary.org/obo/SPD_0000597 epigynal scape http://purl.obolibrary.org/obo/SPD_0000661 process A cuticular protrusion from the median field of the epigyne. http://purl.obolibrary.org/obo/SPD_0000598 gland of copulatory duct http://purl.obolibrary.org/obo/SPD_0000558 female accessory gland A gland discharging secretion through pores in a copulatory duct. http://purl.obolibrary.org/obo/SPD_0000599 gland of fertilization duct http://purl.obolibrary.org/obo/SPD_0000679 gland A gland discharging secretion through pores in a fertilization duct. http://purl.obolibrary.org/obo/SPD_0000600 cluster of glandular units http://purl.obolibrary.org/obo/SPD_0000557 gland of spermatheca A distinct area (e.g. pore plate) with an accumulation of glandular units. http://purl.obolibrary.org/obo/SPD_0000601 peg tooth http://purl.obolibrary.org/obo/SPD_0000315 macroseta A short macroseta on the promargin or retromargin of the chelicerae, with blunt tip. Peg teeth occur most commonly in Palpimanoids. http://purl.obolibrary.org/obo/SPD_0000603 heart ostium 1 http://purl.obolibrary.org/obo/SPD_0000080 heart ostium The first of the heart ostia. http://purl.obolibrary.org/obo/SPD_0000604 heart ostium 2 http://purl.obolibrary.org/obo/SPD_0000080 heart ostium The second of the heart ostia. http://purl.obolibrary.org/obo/SPD_0000605 heart ostium 3 http://purl.obolibrary.org/obo/SPD_0000080 heart ostium The third of the heart ostia. http://purl.obolibrary.org/obo/SPD_0000606 heart ostium 4 http://purl.obolibrary.org/obo/SPD_0000080 heart ostium The fourth of the heart ostia. http://purl.obolibrary.org/obo/SPD_0000607 heart ostium 5 http://purl.obolibrary.org/obo/SPD_0000080 heart ostium The fifth of the heart ostia. http://purl.obolibrary.org/obo/SPD_0000608 preying web http://purl.obolibrary.org/obo/SPD_0000318 silk structure A slik structure used to entangle preys. http://purl.obolibrary.org/obo/SPD_0000610 digestive system http://purl.obolibrary.org/obo/SPD_0000678 anatomical system Organ system responsible for the food uptake and processing. http://purl.obolibrary.org/obo/SPD_0000611 circulatory system http://purl.obolibrary.org/obo/SPD_0000678 anatomical system For Wirkner to do. http://purl.obolibrary.org/obo/SPD_0000619 respiratory system http://purl.obolibrary.org/obo/SPD_0000678 anatomical system The organ system used for gas exchange, lined by cuticle, composed by booklungs and tubular tracheae. http://purl.obolibrary.org/obo/SPD_0000620 nervous system http://purl.obolibrary.org/obo/SPD_0000678 anatomical system Anatomical system that consists of neurons and its supporting tissues. http://purl.obolibrary.org/obo/SPD_0000627 malpighian tubule http://purl.obolibrary.org/obo/SPD_0000778 epithelial tube Epithelial tube with excretory and osmoregulatory roles connected, to at the junction of the midgut and hindgut. http://purl.obolibrary.org/obo/SPD_0000628 midgut http://purl.obolibrary.org/obo/SPD_0000778 epithelial tube The median portion of the digestive tube, of mesodermal origin, not lined with cuticle, between the stomach and the stercoral pocket. http://purl.obolibrary.org/obo/SPD_0000631 silk gland http://purl.obolibrary.org/obo/SPD_0000679 gland A gland of the spinning aparatus, that produces silk. http://purl.obolibrary.org/obo/SPD_0000632 excretory system http://purl.obolibrary.org/obo/SPD_0000678 anatomical system The organ system responsible for the removal of waste and excess material from the organism. http://purl.obolibrary.org/obo/SPD_0000633 spinning apparatus http://purl.obolibrary.org/obo/SPD_0000678 anatomical system Organ system which is responsible for silk production and formation. http://purl.obolibrary.org/obo/SPD_0000635 major ampullate gland http://purl.obolibrary.org/obo/SPD_0000631 silk gland A large silk gland with elongate lumen and long duct, discharging in a spigot on a anterior lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000636 piriform gland http://purl.obolibrary.org/obo/SPD_0000631 silk gland A small silk gland with globular lumen and short duct, discharging in a spigot on an anterior lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000637 aciniform gland http://purl.obolibrary.org/obo/SPD_0000631 silk gland A small silk gland with globular lumen and short duct, discharging in a spigot on a posterior median or lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000638 cylindrical gland http://purl.obolibrary.org/obo/SPD_0000631 silk gland A large silk gland with tubular elongate lumen, discharging in a spigot on a posterior median or posterior lateral spinneret of an adult female. http://purl.obolibrary.org/obo/SPD_0000639 flagelliform gland http://purl.obolibrary.org/obo/SPD_0000631 silk gland A large silk gland with complex lumen and long duct, discharging in a spigot on a posterior lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000640 aggregate gland http://purl.obolibrary.org/obo/SPD_0000631 silk gland A large silk gland with complex ramidied lumen, discharging in a spigot on a posterior lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000641 palpal femoral thorn http://purl.obolibrary.org/obo/SPD_0000685 plectrum A short seta with raised base on the prolateral basal surface of the palpal femur, most often used for stridulation against opposing ridges on the chelicerae. http://purl.obolibrary.org/obo/SPD_0000649 serrate accessory claw seta http://purl.obolibrary.org/obo/SPD_0000359 seta A specialized seta at the tip of the tarsus, below the claws, with a ventral serrate side. They occur in araneoids, austrochilids, and other araneomorphs, and interact with the inferior claw to grasp a silk thread. http://purl.obolibrary.org/obo/SPD_0000650 sensory organ http://purl.obolibrary.org/obo/SPD_0000622 peripheral nervous system A sensory organ is a cluster of cells. It is part of a nervous system and consists of receptor cells, which form a multicellular unit that may include accessory cells, which serve as supportive structures, stimulus guiding structures or protective structures. http://purl.obolibrary.org/obo/SPD_0000651 appendage http://purl.obolibrary.org/obo/SPD_0000688 organism subdivision An outgrow of the body with articles and muscles. http://purl.obolibrary.org/obo/SPD_0000652 claw tuft clasper http://purl.obolibrary.org/obo/SPD_0000382 superior claw A hook-like extension of the superior claws, grasping the folded base of a claw tuft seta. The clasper may be in one piece or composed by several claw teeth appressed together. http://purl.obolibrary.org/obo/SPD_0000655 metatarsal preening comb http://purl.obolibrary.org/obo/SPD_0000490 cluster of setae A comb of setae at the ventral tip of metatarsus III and IV. http://purl.obolibrary.org/obo/SPD_0000656 leg cusple http://purl.obolibrary.org/obo/SPD_0000346 cusple A cusple on the ventral surface of a leg. http://purl.obolibrary.org/obo/SPD_0000658 tarsal organ of female palp http://purl.obolibrary.org/obo/SPD_0000310 tarsal organ The tarsal organ of the female palpal tarsus. http://purl.obolibrary.org/obo/SPD_0000660 tarsal organ of leg http://purl.obolibrary.org/obo/SPD_0000310 tarsal organ The tarsal organ on the leg tarsus. http://purl.obolibrary.org/obo/SPD_0000665 adult http://purl.obolibrary.org/obo/SPD_0000001 multi-cellular organism A mature individual, with fully developed sexual organs. http://purl.obolibrary.org/obo/SPD_0000666 muscular system http://purl.obolibrary.org/obo/SPD_0000678 anatomical system Anatomical system that consists of muscles, tendons and apodemes. http://purl.obolibrary.org/obo/SPD_0000667 muscle http://purl.obolibrary.org/obo/SPD_0000689 portion of tissue The portion of tissue that is composed of contractile fibers. http://purl.obolibrary.org/obo/SPD_0000668 tendon http://purl.obolibrary.org/obo/SPD_0000689 portion of tissue A thin extension of cuticular tubes lined with epithelium, where a muscle inserts. http://purl.obolibrary.org/obo/SPD_0000669 article http://purl.obolibrary.org/obo/SPD_0000663 sclerite A section of an appendage, delimited from another article, or from its insertion on the body, by joints. http://purl.obolibrary.org/obo/SPD_0000670 joint http://purl.obolibrary.org/obo/SPD_0000677 anatomical cluster The anatomical cluster that makes a flexible articulation between articles of appendages, or their insertion on the body. http://purl.obolibrary.org/obo/SPD_0000671 eudesmatic joint http://purl.obolibrary.org/obo/SPD_0000670 joint The joint that is operated by muscles that insert on the rim of the distal article. Eudesmatic joints delimit podomeres. http://purl.obolibrary.org/obo/SPD_0000672 adesmatic joint http://purl.obolibrary.org/obo/SPD_0000670 joint The joint that is operated by muscles that do not insert on the rim of the distal article. Adesmatic joints delimit pseudopodomeres. http://purl.obolibrary.org/obo/SPD_0000673 mouthparts http://purl.obolibrary.org/obo/SPD_0000002 prosoma The anatomical cluster that is composed of the chelicerae, labrum, labium, palpal coxae, and conjunctivae connecting them. http://purl.obolibrary.org/obo/SPD_0000674 material anatomical entity http://purl.obolibrary.org/obo/SPD_0000000 anatomical entity Anatomical entity that has mass. http://purl.obolibrary.org/obo/SPD_0000675 anatomical structure http://purl.obolibrary.org/obo/SPD_0000674 material anatomical entity Material anatomical entity that has inherent 3D shape and is generated by coordinated expression of the organism's own genome. http://purl.obolibrary.org/obo/SPD_0000676 anatomical group http://purl.obolibrary.org/obo/SPD_0000675 anatomical structure Anatomical structure consisting of at least two non-overlapping organs, multi-tissue aggregates or portion of tissues or cells of different types that does not constitute an organism, organ, multi-tissue aggregate, or portion of tissue. http://purl.obolibrary.org/obo/SPD_0000677 anatomical cluster http://purl.obolibrary.org/obo/SPD_0000676 anatomical group Anatomical group that has its parts adjacent to one another. http://purl.obolibrary.org/obo/SPD_0000678 anatomical system http://purl.obolibrary.org/obo/SPD_0000676 anatomical group Anatomical group that has as its parts distinct anatomical structures interconnected by anatomical structures at a lower level of granularity. http://purl.obolibrary.org/obo/SPD_0000679 gland http://purl.obolibrary.org/obo/SPD_0000677 anatomical cluster The anatomical cluster that is composed of epithelial cell(s) that secrete or excrete materials not related to their ordinary metabolic needs. http://purl.obolibrary.org/obo/SPD_0000680 spermophor gland http://purl.obolibrary.org/obo/SPD_0000679 gland A gland that discharges its secretion into the spermophor. http://purl.obolibrary.org/obo/SPD_0000681 bulb gland http://purl.obolibrary.org/obo/SPD_0000679 gland A gland on the copulatory bulb, not connected to the spermophor, that may be involved in the production of the mating plug. http://purl.obolibrary.org/obo/SPD_0000684 stridulatory organ http://purl.obolibrary.org/obo/SPD_0000677 anatomical cluster A cuticular structure made of a file and a plectrum, that produce acoustic or seismic vibrations. http://purl.obolibrary.org/obo/SPD_0000687 segment http://purl.obolibrary.org/obo/SPD_0000677 anatomical cluster One of the repeated divisions of the whole organism along the antero-posterior axis. The anatomical cluster that is connected to other segments via conjunctivae and muscles and is delimited by its sclerites. http://purl.obolibrary.org/obo/SPD_0000688 organism subdivision http://purl.obolibrary.org/obo/SPD_0000675 anatomical structure Anatomical structure which is a primary subdivision of whole organism. The mereological sum of these is the whole organism. http://purl.obolibrary.org/obo/SPD_0000689 portion of tissue http://purl.obolibrary.org/obo/SPD_0000675 anatomical structure Anatomical structure, that consists of similar cells and intercellular matrix, aggregated according to genetically determined spatial relationships. http://purl.obolibrary.org/obo/SPD_0000690 immaterial anatomical entity http://purl.obolibrary.org/obo/SPD_0000000 anatomical entity Anatomical entity that has no mass. http://purl.obolibrary.org/obo/SPD_0000691 anatomical space http://purl.obolibrary.org/obo/SPD_0000690 immaterial anatomical entity Non-material anatomical entity of three dimensions, that is generated by morphogenetic or other physiologic processes; is surrounded by one or more anatomical structures; contains one or more organism substances or anatomical structures. http://purl.obolibrary.org/obo/SPD_0000692 cheliceral diastema http://purl.obolibrary.org/obo/SPD_0000691 anatomical space A wide space between chelicerae and endites. http://purl.obolibrary.org/obo/SPD_0000694 cheliceral tooth http://purl.obolibrary.org/obo/SPD_0000661 process A conical, sclerotized process on the promargin or retromargin of the chelicerae, sometimes also on the cheliceral furrow, as denticles. http://purl.obolibrary.org/obo/SPD_0000695 cheliceral lamina http://purl.obolibrary.org/obo/SPD_0000661 process A process on the mesal surface of the paturon, often keel shaped, extending distally, often meeting the fang tip to form a chela. http://purl.obolibrary.org/obo/SPD_0000696 rastellum http://purl.obolibrary.org/obo/SPD_0000490 cluster of setae A cluster of thick macrosetae, sometimes located on a process, placed anteriorly near the base of the fang. http://purl.obolibrary.org/obo/SPD_0000697 palpal muscle M30 http://purl.obolibrary.org/obo/SPD_0000667 muscle The muscle that originates on the dorsal part of the palpal tarsus and attaches through a tendon on the basal part of the copulatory bulb. http://purl.obolibrary.org/obo/SPD_0000698 palpal muscle M29 http://purl.obolibrary.org/obo/SPD_0000667 muscle The muscle that originates in the palpal tibia and attaches through a tendon winding on the basal part of the copulatory bulb, or enters the bulb and attaches to the spermophore (in some Synspermiata). http://purl.obolibrary.org/obo/SPD_0000700 fertilization duct http://purl.obolibrary.org/obo/SPD_0000781 integumental tube The duct connecting the sperm storage site in the female genitalia with the uterus externus or posterior diverticulum. http://purl.obolibrary.org/obo/SPD_0000701 copulatory duct http://purl.obolibrary.org/obo/SPD_0000781 integumental tube A duct in the female genitalia connecting the copulatory opening to the sperm storage site. http://purl.obolibrary.org/obo/SPD_0000702 procursus http://purl.obolibrary.org/obo/SPD_0000524 process of cymbium A large, elaborate process on the retrolateral side of cymbium. http://purl.obolibrary.org/obo/SPD_0000704 fulcrum http://purl.obolibrary.org/obo/SPD_0000661 process A process on the distal end of the distal sclerotized tube or radix. http://purl.obolibrary.org/obo/SPD_0000705 stipes http://purl.obolibrary.org/obo/SPD_0000663 sclerite A sclerite connecting the embolus with the radix, and containing the spermophor. http://purl.obolibrary.org/obo/SPD_0000707 paramedian apophysis http://purl.obolibrary.org/obo/SPD_0000663 sclerite A sclerite of the copulatory bulb arising from the tegulum, in addition to the median apophysis. http://purl.obolibrary.org/obo/SPD_0000710 sulcus http://purl.obolibrary.org/obo/SPD_0000664 depression A depression often associated with glands, near the ocular area. http://purl.obolibrary.org/obo/SPD_0000711 minor ampullate gland http://purl.obolibrary.org/obo/SPD_0000631 silk gland A large silk gland with elongate lumen and long duct, discharging in a spigot on a posterior median spinneret. http://purl.obolibrary.org/obo/SPD_0000712 paracribellar gland http://purl.obolibrary.org/obo/SPD_0000631 silk gland A small silk gland with globular lumen and short duct, discharging in a spigot on a posterior median spinneret, rarely on a posterior lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000713 cribellar gland http://purl.obolibrary.org/obo/SPD_0000631 silk gland A very small silk gland with globular lumen and short duct, discharging in a spigot on the cribellum. http://purl.obolibrary.org/obo/SPD_0000714 pseudoflagelliform gland http://purl.obolibrary.org/obo/SPD_0000631 silk gland A large silk gland with complex lumen and long duct, discharging in a spigot on a posterior lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000715 pumpkiniform gland http://purl.obolibrary.org/obo/SPD_0000631 silk gland A silk gland serving a pumpkiniform gland spigot. http://purl.obolibrary.org/obo/SPD_0000716 gonad http://purl.obolibrary.org/obo/SPD_0000717 compound organ The compound organ that makes gametes. http://purl.obolibrary.org/obo/SPD_0000717 compound organ http://purl.obolibrary.org/obo/SPD_0000675 anatomical structure The anatomical structure that has as its parts two or more multi-tissue structures of at least two different types and which through specific morphogenetic processes forms a single distinct structural unit demarcated by bona fide boundaries from other distinct anatomical structures of different types. http://purl.obolibrary.org/obo/SPD_0000718 seminal fluid http://purl.obolibrary.org/obo/SPD_0000689 portion of tissue The portion of tissue consisting of sperm cells and secretion that is produced by the somatic cells of the male gonad and spermophor gland. http://purl.obolibrary.org/obo/SPD_0000719 cell http://purl.obolibrary.org/obo/SPD_0000675 anatomical structure The anatomical structure that has as its parts a maximally connected cell compartment surrounded by a plasma membrane. http://purl.obolibrary.org/obo/SPD_0000721 sperm http://purl.obolibrary.org/obo/SPD_0000742 gamete A mature male germ cell that develops from a spermatid. http://purl.obolibrary.org/obo/SPD_0000722 spermatid http://purl.obolibrary.org/obo/SPD_0000740 male germ cell A male germ cell that develops from the haploid secondary spermatocytes. Without further division, spermatids undergo structural changes and give rise to spermatozoa. http://purl.obolibrary.org/obo/SPD_0000723 spermatocyte http://purl.obolibrary.org/obo/SPD_0000740 male germ cell A male germ cell that develops from spermatogonia. The euploid primary spermatocytes undergo meiosis and give rise to the haploid secondary spermatocytes which in turn give rise to spermatids. http://purl.obolibrary.org/obo/SPD_0000724 spermatogonium http://purl.obolibrary.org/obo/SPD_0000740 male germ cell An euploid male germ cell of an early stage of spermatogenesis. http://purl.obolibrary.org/obo/SPD_0000725 somatic cell http://purl.obolibrary.org/obo/SPD_0000719 cell A cell of an organism that does not pass on its genetic material to the organism's offspring (i.e. a non-germ line cell). http://purl.obolibrary.org/obo/SPD_0000726 organelle http://purl.obolibrary.org/obo/SPD_0000720 cell component Organized structure of distinctive morphology and function. Includes the nucleus, mitochondria, plastids, vacuoles, vesicles, ribosomes and the cytoskeleton, and prokaryotic structures such as anammoxosomes and pirellulosomes. Excludes the plasma membrane. http://purl.obolibrary.org/obo/SPD_0000727 membrane-bounded organelle http://purl.obolibrary.org/obo/SPD_0000726 organelle Organized structure of distinctive morphology and function, bounded by a single or double lipid bilayer membrane. Includes the nucleus, mitochondria, plastids, vacuoles, and vesicles. Excludes the plasma membrane. http://purl.obolibrary.org/obo/SPD_0000728 non-membrane-bounded organelle http://purl.obolibrary.org/obo/SPD_0000726 organelle Organized structure of distinctive morphology and function, not bounded by a lipid bilayer membrane. Includes ribosomes, the cytoskeleton and chromosomes. http://purl.obolibrary.org/obo/SPD_0000729 cytoplasmic vesicle http://purl.obolibrary.org/obo/SPD_0000795 cytoplasmic part A vesicle formed of membrane or protein, found in the cytoplasm of a cell. http://purl.obolibrary.org/obo/SPD_0000731 secretory granule http://purl.obolibrary.org/obo/SPD_0000729 cytoplasmic vesicle A small subcellular vesicle, surrounded by a membrane, that is formed from the Golgi apparatus and contains a highly concentrated protein destined for secretion. Secretory granules move towards the periphery of the cell and upon stimulation, their membranes fuse with the cell membrane, and their protein load is exteriorized. Processing of the contained protein may take place in secretory granules. http://purl.obolibrary.org/obo/SPD_0000732 acrosomal vacuole http://purl.obolibrary.org/obo/SPD_0000731 secretory granule A structure in the head of a spermatozoon that contains acid hydrolases, and is concerned with the breakdown of the outer membrane of the ovum during fertilization. It lies just beneath the plasma membrane and is derived from the lysosome. http://purl.obolibrary.org/obo/SPD_0000733 vesicle http://purl.obolibrary.org/obo/SPD_0000726 organelle Any small, fluid-filled, spherical organelle enclosed by membrane or protein. http://purl.obolibrary.org/obo/SPD_0000734 subacrosomal space http://purl.obolibrary.org/obo/SPD_0000691 anatomical space The anatomical space containing the acrosomal filament and is formed by posterior invagination of the acrosomal vacuole. http://purl.obolibrary.org/obo/SPD_0000735 acrosomal complex http://purl.obolibrary.org/obo/SPD_0000720 cell component A cellular complex consisting of acrosomal vacuole, acrosomal filament and subacrosomal space. http://purl.obolibrary.org/obo/SPD_0000736 germ cell http://purl.obolibrary.org/obo/SPD_0000719 cell A germ cell is any biological cell that differentiates into the gametes of an organism that reproduces sexually. http://purl.obolibrary.org/obo/SPD_0000737 acrosomal filament http://purl.obolibrary.org/obo/SPD_0000739 cytoskeletal part A filamentous structure consisting of actin fibrils, originating in the subacrosomal space and extending into the nuclear canal. http://purl.obolibrary.org/obo/SPD_0000738 cytoskeleton http://purl.obolibrary.org/obo/SPD_0000728 non-membrane-bounded organelle Any of the various filamentous elements that form the internal framework of cells, and typically remain after treatment of the cells with mild detergent to remove membrane constituents and soluble components of the cytoplasm. The term embraces intermediate filaments, microfilaments, microtubules, the microtrabecular lattice, and other structures characterized by a polymeric filamentous nature and long-range order within the cell. The various elements of the cytoskeleton not only serve in the maintenance of cellular shape but also have roles in other cellular functions, including cellular movement, cell division, endocytosis, and movement of organelles. http://purl.obolibrary.org/obo/SPD_0000740 male germ cell http://purl.obolibrary.org/obo/SPD_0000736 germ cell Cell that develops into or is itself a spermatozoon. http://purl.obolibrary.org/obo/SPD_0000741 female germ cell http://purl.obolibrary.org/obo/SPD_0000736 germ cell Cell that develops into or is itself an egg. http://purl.obolibrary.org/obo/SPD_0000742 gamete http://purl.obolibrary.org/obo/SPD_0000736 germ cell A mature germ cell containing a single set of chromosomes. http://purl.obolibrary.org/obo/SPD_0000743 muscle cell http://purl.obolibrary.org/obo/SPD_0000725 somatic cell A mature contractile cell, commonly known as a myocyte. This cell has as part of its cytoplasm myofibrils organized in various patterns. http://purl.obolibrary.org/obo/SPD_0000744 somatic cell of testis http://purl.obolibrary.org/obo/SPD_0000725 somatic cell A non-germ cell in the testis. http://purl.obolibrary.org/obo/SPD_0000745 hemocyte http://purl.obolibrary.org/obo/SPD_0000725 somatic cell Blood cell of the circulating hemolymph that is involved in the cellular immune response. http://purl.obolibrary.org/obo/SPD_0000746 syncytium http://purl.obolibrary.org/obo/SPD_0000719 cell A multi-nucleate cell having no internal boundaries between nuclei. http://purl.obolibrary.org/obo/SPD_0000747 axoneme http://purl.obolibrary.org/obo/SPD_0000739 cytoskeletal part The bundle of microtubules and associated proteins that forms the core of cilia (also called flagella) in eukaryotic cells and is responsible for their movements. http://purl.obolibrary.org/obo/SPD_0000748 mitochondrion http://purl.obolibrary.org/obo/SPD_0000727 membrane-bounded organelle A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. http://purl.obolibrary.org/obo/SPD_0000749 nucleus http://purl.obolibrary.org/obo/SPD_0000727 membrane-bounded organelle A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent. http://purl.obolibrary.org/obo/SPD_0000750 sperm nucleus http://purl.obolibrary.org/obo/SPD_0000749 nucleus The nucleus of a spermatid or sperm. http://purl.obolibrary.org/obo/SPD_0000753 anterior indentation of the sperm nucleus http://purl.obolibrary.org/obo/SPD_0000691 anatomical space The widen anatomical space at the anterior pole of the nucleus close to the acrosomal vacuole. http://purl.obolibrary.org/obo/SPD_0000754 centriole http://purl.obolibrary.org/obo/SPD_0000739 cytoskeletal part A cellular organelle, found close to the nucleus in many eukaryotic cells, consisting of a small cylinder with microtubular walls, 300-500 nm long and 150-250 nm in diameter. It contains nine short, parallel, peripheral microtubular fibrils, each fibril consisting of one complete microtubule fused to two incomplete microtubules. Cells usually have two centrioles, lying at right angles to each other. At division, each pair of centrioles generates another pair and the twin pairs form the pole of the mitotic spindle. http://purl.obolibrary.org/obo/SPD_0000755 manchette of microtubules http://purl.obolibrary.org/obo/SPD_0000739 cytoskeletal part An array of microtubules that completely covers the nucleus of a spermatid. http://purl.obolibrary.org/obo/SPD_0000756 midpiece http://purl.obolibrary.org/obo/SPD_0000727 membrane-bounded organelle An array of mitochondria surrounding the most anterior part of the axoneme. http://purl.obolibrary.org/obo/SPD_0000757 nuclear canal http://purl.obolibrary.org/obo/SPD_0000691 anatomical space A narrow anatomical space of the nucleus that is invaginated from the anterior pole and usually located at the outer edge of nucleus extending until the end of the posterior elongation of the nucleus. http://purl.obolibrary.org/obo/SPD_0000758 Golgi apparatus http://purl.obolibrary.org/obo/SPD_0000727 membrane-bounded organelle A compound membranous cytoplasmic organelle of eukaryotic cells, consisting of flattened, ribosome-free vesicles arranged in a more or less regular stack. The Golgi apparatus differs from the endoplasmic reticulum in often having slightly thicker membranes, appearing in sections as a characteristic shallow semicircle so that the convex side (cis or entry face) abuts the endoplasmic reticulum, secretory vesicles emerging from the concave side (trans or exit face). http://purl.obolibrary.org/obo/SPD_0000759 endoplasmic reticulum http://purl.obolibrary.org/obo/SPD_0000727 membrane-bounded organelle The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached). http://purl.obolibrary.org/obo/SPD_0000760 sperm conjugate http://purl.obolibrary.org/obo/SPD_0000768 sperm transfer form A cluster of multiple sperm joined together for motility and transport through the female reproductive tract before dissociation prior to fertilization. The conjugates are usually surrounded by a common secretion sheath. http://purl.obolibrary.org/obo/SPD_0000761 coenospermium http://purl.obolibrary.org/obo/SPD_0000764 secondary sperm conjugate An often spherical cluster of two or more individual sperm. http://purl.obolibrary.org/obo/SPD_0000762 rouleau http://purl.obolibrary.org/obo/SPD_0000764 secondary sperm conjugate An orderly stack of sperm of variable number formed after spermiogenesis, including individualization, is complete. http://purl.obolibrary.org/obo/SPD_0000763 primary sperm conjugate http://purl.obolibrary.org/obo/SPD_0000760 sperm conjugate A conjugate derived from spermatogenic processes formed by the products of a single spermatogonium remaining grouped together following spermiogenesis. http://purl.obolibrary.org/obo/SPD_0000764 secondary sperm conjugate http://purl.obolibrary.org/obo/SPD_0000760 sperm conjugate A sperm conjugate arising through post-spermatogenic mechanisms such as biomechanical interactions, cell-surface interactions or membrane fusion. http://purl.obolibrary.org/obo/SPD_0000765 synspermium http://purl.obolibrary.org/obo/SPD_0000763 primary sperm conjugate Cluster of two or more fused or partly fused sperm cells originating from a single spermatogonium. http://purl.obolibrary.org/obo/SPD_0000767 seminal secretion http://purl.obolibrary.org/obo/SPD_0000008 portion of organism substance Any products (droplets and matrix) produced by the somatic cells of the male gonad and transferred into the female genitalia. http://purl.obolibrary.org/obo/SPD_0000769 cleistospermium http://purl.obolibrary.org/obo/SPD_0000768 sperm transfer form Individual sperm cell surrounded by a secretion sheath. http://purl.obolibrary.org/obo/SPD_0000770 oocyte http://purl.obolibrary.org/obo/SPD_0000741 female germ cell A female germ cell that has entered meiosis. http://purl.obolibrary.org/obo/SPD_0000771 oogonial cell http://purl.obolibrary.org/obo/SPD_0000741 female germ cell An undifferentiated germ cell that proliferates rapidly and gives rise to oocytes. http://purl.obolibrary.org/obo/SPD_0000772 oviduct http://purl.obolibrary.org/obo/SPD_0000778 epithelial tube The tube that connects the ovary with the uterus internus. http://purl.obolibrary.org/obo/SPD_0000774 hindgut http://purl.obolibrary.org/obo/SPD_0000781 integumental tube The posterior part of the digestive system derived from the ectoderm connecting the stercoral pocket with the anus. http://purl.obolibrary.org/obo/SPD_0000775 epithelium http://purl.obolibrary.org/obo/SPD_0000689 portion of tissue Portion of tissue, that consists of one or more layers of epithelial cells connected to each other by cell junctions and which is underlain by a basal lamina. http://purl.obolibrary.org/obo/SPD_0000776 anatomical conduit http://purl.obolibrary.org/obo/SPD_0000677 anatomical cluster Any tube, opening or passage that connects two distinct anatomical spaces. http://purl.obolibrary.org/obo/SPD_0000777 tube http://purl.obolibrary.org/obo/SPD_0000776 anatomical conduit Any hollow cylindrical anatomical structure containing a lumen through which substances are transported. http://purl.obolibrary.org/obo/SPD_0000778 epithelial tube http://purl.obolibrary.org/obo/SPD_0000777 tube Epithelial tubes transport gases, liquids and cells from one site to another and form the basic structure of many organs and tissues. http://purl.obolibrary.org/obo/SPD_0000779 epidermis http://purl.obolibrary.org/obo/SPD_0000775 epithelium The epidermis is the entire outer epithelial layer representing a single layer of epithelial cells that produces the cuticle. http://purl.obolibrary.org/obo/SPD_0000780 socket of tactile hair http://purl.obolibrary.org/obo/SPD_0000360 setal socket The socket of a tactile hair. http://purl.obolibrary.org/obo/SPD_0000781 integumental tube http://purl.obolibrary.org/obo/SPD_0000777 tube A tube formed by the integument, transporting gases, liquids and cells from one site to another. http://purl.obolibrary.org/obo/SPD_0000782 midgut gland http://purl.obolibrary.org/obo/SPD_0000679 gland The sum of all posterior midgut diverticles. http://purl.obolibrary.org/obo/SPD_0000784 embryonic cell http://purl.obolibrary.org/obo/SPD_0000719 cell A cell of the embryo. http://purl.obolibrary.org/obo/SPD_0000785 early embryonic cell http://purl.obolibrary.org/obo/SPD_0000784 embryonic cell A cell found in the embryo before the formation of all the gem layers is complete. http://purl.obolibrary.org/obo/SPD_0000786 zygote http://purl.obolibrary.org/obo/SPD_0000785 early embryonic cell Diploid cell produced by the fusion of sperm cell nucleus and egg. http://purl.obolibrary.org/obo/SPD_0000787 embryo http://purl.obolibrary.org/obo/SPD_0000001 multi-cellular organism Anatomical entity that comprises the organism in the early stages of growth and differentiation that are characterized by cleavage, the laying down of fundamental tissues, and the formation of primitive organs and organ systems. http://purl.obolibrary.org/obo/SPD_0000788 immature http://purl.obolibrary.org/obo/SPD_0000001 multi-cellular organism A generic term for stages from hatching to penultimate. http://purl.obolibrary.org/obo/SPD_0000789 penultimate http://purl.obolibrary.org/obo/SPD_0000001 multi-cellular organism A generic term for the life stage before maturity. http://purl.obolibrary.org/obo/SPD_0000790 implantation fossa http://purl.obolibrary.org/obo/SPD_0000691 anatomical space The posterior indentation of the sperm nucleus. http://purl.obolibrary.org/obo/SPD_0000791 chromosome http://purl.obolibrary.org/obo/SPD_0000728 non-membrane-bounded organelle A structure composed of a very long molecule of DNA and associated proteins (e.g. histones) that carries hereditary information. http://purl.obolibrary.org/obo/SPD_0000793 chromatin http://purl.obolibrary.org/obo/SPD_0000792 chromosomal part The ordered and organized complex of DNA, protein, and sometimes RNA, that forms the chromosome. http://purl.obolibrary.org/obo/SPD_0000794 microtubule http://purl.obolibrary.org/obo/SPD_0000739 cytoskeletal part Any of the long, generally straight, hollow tubes of internal diameter 12-15 nm and external diameter 24 nm found in a wide variety of eukaryotic cells; each consists (usually) of 13 protofilaments of polymeric tubulin, staggered in such a manner that the tubulin monomers are arranged in a helical pattern on the microtubular surface, and with the alpha/beta axes of the tubulin subunits parallel to the long axis of the tubule; exist in equilibrium with pool of tubulin monomers and can be rapidly assembled or disassembled in response to physiological stimuli; concerned with force generation, e.g. in the spindle. http://purl.obolibrary.org/obo/SPD_0000796 glycogen granule http://purl.obolibrary.org/obo/SPD_0000795 cytoplasmic part Cytoplasmic bead-like structures of animal cells, visible by electron microscope. Each granule is a functional unit with the biosynthesis and catabolism of glycogen being catalyzed by enzymes bound to the granule surface. http://purl.obolibrary.org/obo/SPD_0000797 neural cell http://purl.obolibrary.org/obo/SPD_0000725 somatic cell A cell that is part of the nervous system. http://purl.obolibrary.org/obo/SPD_0000798 neuron http://purl.obolibrary.org/obo/SPD_0000797 neural cell The basic cellular unit of nervous tissue. Each neuron consists of a body, an axon, and dendrites. Their purpose is to receive, conduct, and transmit impulses in the nervous system. http://purl.obolibrary.org/obo/SPD_0000799 afferent neuron http://purl.obolibrary.org/obo/SPD_0000798 neuron A neuron which conveys sensory information centrally from the periphery. http://purl.obolibrary.org/obo/SPD_0000800 efferent neuron http://purl.obolibrary.org/obo/SPD_0000798 neuron A neuron which sends impulses peripherally to activate muscles or secretory cells. http://purl.obolibrary.org/obo/SPD_0000801 sensory neuron http://purl.obolibrary.org/obo/SPD_0000799 afferent neuron Any neuron having a sensory function; an afferent neuron conveying sensory impulses. http://purl.obolibrary.org/obo/SPD_0000802 motor neuron http://purl.obolibrary.org/obo/SPD_0000800 efferent neuron An efferent neuron that passes from the central nervous system or a ganglion toward or to a muscle and conducts an impulse that causes or inhibits movement. http://purl.obolibrary.org/obo/SPD_0000803 interneuron http://purl.obolibrary.org/obo/SPD_0000798 neuron Most generally any neuron which is not motor or sensory. Interneurons may also refer to neurons whose axons remain within a particular brain region as contrasted with projection neurons which have axons projecting to other brain regions. http://purl.obolibrary.org/obo/SPD_0000804 mechanoreceptor cell http://purl.obolibrary.org/obo/SPD_0000801 sensory neuron A cell specialized to transduce mechanical stimuli and relay that information centrally in the nervous system. http://purl.obolibrary.org/obo/SPD_0000805 chemoreceptor cell http://purl.obolibrary.org/obo/SPD_0000801 sensory neuron A cell specialized to detect chemical substances and relay that information centrally in the nervous system. http://purl.obolibrary.org/obo/SPD_0000806 secretory cell http://purl.obolibrary.org/obo/SPD_0000725 somatic cell A cell that specializes in controlled release of one or more substances. http://purl.obolibrary.org/obo/SPD_0000807 exocrine cell http://purl.obolibrary.org/obo/SPD_0000806 secretory cell A cell of an exocrine gland; i.e. a gland that discharges its secretion via a duct. http://purl.obolibrary.org/obo/SPD_0000808 excretory cell http://purl.obolibrary.org/obo/SPD_0000725 somatic cell A cell involved in the elimination of metabolic and foreign toxins, and in maintaining the ionic, acid-base and water balance of biological fluids. http://purl.obolibrary.org/obo/SPD_0000809 dorso-ventral abdominal muscle 1 http://purl.obolibrary.org/obo/SPD_0000667 muscle The first, paired dorso-ventral abdominal muscle. http://purl.obolibrary.org/obo/SPD_0000810 dorso-ventral abdominal muscle 2 http://purl.obolibrary.org/obo/SPD_0000667 muscle The second, paired dorso-ventral abdominal muscle. http://purl.obolibrary.org/obo/SPD_0000811 dorso-ventral abdominal muscle 3 http://purl.obolibrary.org/obo/SPD_0000667 muscle The third, paired dorso-ventral abdominal muscle. http://purl.obolibrary.org/obo/SPD_0000812 dorso-ventral abdominal muscle 4 http://purl.obolibrary.org/obo/SPD_0000667 muscle The fourth, paired dorso-ventral abdominal muscle. http://purl.obolibrary.org/obo/SPD_0000813 pretarsal levator leg muscle http://purl.obolibrary.org/obo/SPD_0000667 muscle The muscle in the leg that produces a levation of the pretarsus. It originates at the proximal, dorsal surface of the metatarsus, and its tendon extends through the metatarsus-tarsus joint and is continuous with the tarsus-pretarsus membrane on its insertion on the dorsal rim of the pretarsus. http://purl.obolibrary.org/obo/SPD_0000814 pretarsal depressor leg muscle http://purl.obolibrary.org/obo/SPD_0000667 muscle The muscle in the leg that produces a depression of the pretarsus. It originates at the distal, dorsal surface of the tibia (in Mesothelae there is a section inserted on the patella as well), and its tendon extends through the tibia-metatarsus joint where it enters into the leg artery, and inserts on the ventral surface of the pretarsus. http://purl.obolibrary.org/obo/SPD_0000815 pretarsal depressor leg tendon http://purl.obolibrary.org/obo/SPD_0000668 tendon The tendon connecting the pretarsal depressor muscle and inserting venrally on the pretarsus. http://purl.obolibrary.org/obo/SPD_0000816 pretarsal levator leg tendon http://purl.obolibrary.org/obo/SPD_0000668 tendon The tendon connecting the pretarsal levator muscle and inserting dorsally on the pretarsus. http://purl.obolibrary.org/obo/SPD_0000818 articular membrane http://purl.obolibrary.org/obo/SPD_0000662 conjunctiva The conjunctiva that is located between two articulating sclerites. http://purl.obolibrary.org/obo/SPD_0000819 condyle http://purl.obolibrary.org/obo/SPD_0000821 articular surface The articular surface that is convex and is inserted into the fossa of an adjacent sclerite. http://purl.obolibrary.org/obo/SPD_0000820 acetabulum http://purl.obolibrary.org/obo/SPD_0000821 articular surface The articular surface that is concave and accommodates the condyle of another sclerite. http://purl.obolibrary.org/obo/SPD_0000821 articular surface http://purl.obolibrary.org/obo/SPD_0000825 cuticular structure The area of the sclerite that makes movable direct contact with another sclerite. http://purl.obolibrary.org/obo/SPD_0000822 podomere http://purl.obolibrary.org/obo/SPD_0000669 article The article that is delimited by eudesmatic joints. http://purl.obolibrary.org/obo/SPD_0000823 pseudopodomere http://purl.obolibrary.org/obo/SPD_0000669 article The article that is delimited by at least one adesmatic joint. http://purl.obolibrary.org/obo/SPD_0000824 pretarsal median septum http://purl.obolibrary.org/obo/SPD_0000825 cuticular structure A cuticular septum dividing vertically the ring formed by the pretarsus. http://purl.obolibrary.org/obo/SPD_0000826 pretarsal dorsal pulley http://purl.obolibrary.org/obo/SPD_0000825 cuticular structure A cuticular structure projecting dorsally from the pretarsus. It projects distally forming a dorsal pulley-like grooved surface, which guides and upholds the levator tendon. http://purl.obolibrary.org/obo/SPD_0000827 levator cuticular guide http://purl.obolibrary.org/obo/SPD_0000825 cuticular structure A cuticular structure in the podotarsite that guides the levator tendon in some spiders such as some palpimanids. http://purl.obolibrary.org/obo/SPD_0000828 depressor cuticular guide http://purl.obolibrary.org/obo/SPD_0000825 cuticular structure A cuticular structure arising ventrally from the cuticle of the foot of many spiders, usually from the internal wall of the condyles, may be produced into a pair of thick, parallel ridges that provide a canal for the depressor tendon. The guide extends from the tip of the pretarsus to the foot slits or may continue further into the tarsus. The guide is usually open dorsally, but in some spiders with flexible feet, it is closed making a tube. http://purl.obolibrary.org/obo/SPD_0000829 pretarsal ventral pulley http://purl.obolibrary.org/obo/SPD_0000825 cuticular structure A cuticular structure projecting ventrally from the pretarsus. It projects distally forming a ventral pulley-like grooved surface, which guides and upholds the deressor tendon. http://purl.obolibrary.org/obo/SPD_0000830 levator sheath http://purl.obolibrary.org/obo/SPD_0000825 cuticular structure A cuticular structure in the form of a funnel-like sheath that covers the insertion of the levator tendon on the pretarsus. http://purl.obolibrary.org/obo/SPD_0000831 depressor sheath http://purl.obolibrary.org/obo/SPD_0000825 cuticular structure A cuticular structure in the form of a funnel-like sheath that covers the insertion of the depressor tendon on the pretarsus. http://purl.obolibrary.org/obo/SPD_0000000 anatomical entity Biological entity that is either an individual member of a biological species or constitutes the structural organization of an individual member of a biological species. http://purl.obolibrary.org/obo/SPD_0000011 anal tubercle A small lobe posterior to the spinnerets which bears the anal opening. http://purl.obolibrary.org/obo/SPD_0000012 stage A temporally defined period of development of an organism. http://purl.obolibrary.org/obo/SPD_0000014 organ system An anatomical structure that consists of organs and organ subclasses responsible for certain body functions. http://purl.obolibrary.org/obo/SPD_0000016 cephalic area The anterior portion of the carapace, bearing the eyes, sometimes delimited posteriorly by marked thoracic furrows. http://purl.obolibrary.org/obo/SPD_0000017 thoracic area The posterior portion of the carapace, sometimes delimited anteriorly by marked thoracic furrows. http://purl.obolibrary.org/obo/SPD_0000018 thoracic fovea The central depression in the carapace representing the invagination of the carapace where the stomach muscles attach. http://purl.obolibrary.org/obo/SPD_0000028 epigyne An often sclerotized and well-defined area in the median epigastric area that contains the copulatory openings. http://purl.obolibrary.org/obo/SPD_0000029 vulva A collective term for the internal elements of the female genitalia. http://purl.obolibrary.org/obo/SPD_0000030 epiandrum The area just anterior to the epigastric fold and between the booklungs in male spiders, often bearing epiandrous spigots. http://purl.obolibrary.org/obo/SPD_0000031 posterior lateral respiratory structure The respiratory structure homologous to the posterior booklung, which may be present as a booklung developed in full or in diverse grades of reduction, or as a (lateral) trachea. http://purl.obolibrary.org/obo/SPD_0000033 posterior tracheal spiracle The spiracle of the posterior tracheal system. http://purl.obolibrary.org/obo/SPD_0000034 epigastric furrow A transverse groove or fold across the anterior ventral part of the opisthosoma, delimiting the second and third opisthosomal segments. http://purl.obolibrary.org/obo/SPD_0000035 AMS-cribellum-colulus The anterior median opisthosomal appendage, which may be present as a spinneret in some Mesothelae, or reduced to the cribellum or colulus in Araneomorphae; it is absent in Mygalomorphae. http://purl.obolibrary.org/obo/SPD_0000040 clypeus The space between the anterior edge of the carapace and the anterior eyes. http://purl.obolibrary.org/obo/SPD_0000046 setal shaft The movable body of the seta, articulated on the setal socket. http://purl.obolibrary.org/obo/SPD_0000052 carapace posterior margin The posterior margin of the carapace on top of the pedicel. http://purl.obolibrary.org/obo/SPD_0000058 epigastric area The ventral part of the second opisthosomal segment, between the pedicel and the epigastric furrow. http://purl.obolibrary.org/obo/SPD_0000059 postepigastric area A tentative term for the ventral opisthosomal area between the epigastric fold and the spinnerets. It corresponds with the 3rd opisthosomal segment. http://purl.obolibrary.org/obo/SPD_0000060 posterior respiratory system The part of the respiratory system corresponding to the third segment of the opisthosoma, including the posterior booklungs, tracheae and its derivations. http://purl.obolibrary.org/obo/SPD_0000064 posterior median respiratory structure The paired respiratory structure homologous to the 3rd opisthosomal entapophysis, which may be present as a median trachea. http://purl.obolibrary.org/obo/SPD_0000072 intercheliceral articulation The longitudinal joint between the two chelicerae. http://purl.obolibrary.org/obo/SPD_0000080 heart ostium A paired, slit-like opening in the heart wall through which the hemolymph can enter the lumen of the heart. http://purl.obolibrary.org/obo/SPD_0000115 cribellum A very short, flat field of spigots between the anterior lateral spinnerets. It is homologous to the anterior median spinnerets found in Mesothelae spiders. The cribellum may be median or paired. http://purl.obolibrary.org/obo/SPD_0000117 colulus A raised sector of the cuticle bearing setae, between the anterior lateral spinnerets. It is a relic of the cribellum, found in some araneomorph spiders. The colulus may be median or bilobed. http://purl.obolibrary.org/obo/SPD_0000121 article of posterior median spinneret The only article of posterior median spinneret, bearing the spinning field. http://purl.obolibrary.org/obo/SPD_0000122 basal article of anterior lateral spinneret The basal article of anterior lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000123 median article of anterior lateral spinneret The median article of anterior lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000124 distal article of anterior lateral spinneret The most distal article of anterior lateral spinneret, bearing the spinning field. http://purl.obolibrary.org/obo/SPD_0000127 basal article of posterior lateral spinneret The basal article of the posterior lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000128 distal article of posterior lateral spinneret The most distal article of posterior lateral spinneret, bearing the spinning field. http://purl.obolibrary.org/obo/SPD_0000131 posterior midgut The portion of the midgut contained in the opisthosoma. http://purl.obolibrary.org/obo/SPD_0000132 stercoral pocket A pocket arising dorsally on the posterior part of the midgut where the excrements accumulate. It connects to the anus via the hindgut. http://purl.obolibrary.org/obo/SPD_0000133 lateral lobe Each of the lateral sclerotized plates on the epigyne, ectal to the epigynal fold. http://purl.obolibrary.org/obo/SPD_0000134 median field The median sclerotized plate on the epigyne, between the epigynal folds. http://purl.obolibrary.org/obo/SPD_0000138 primary spermatheca A hollow sclerotized structure of the female genitalia of entelegyne spiders, used for the storage of sperm. The spermatheca is connected to the copulatory and fertilization ducts. http://purl.obolibrary.org/obo/SPD_0000140 accessory bulb A hollow, blind sclerotized structure of the female genitalia of entelegyne spiders, usually connected by a duct to the anterior copulatory duct. The accessory bulb has several gland pores with cuticular glandular ducts. In occasions the accessory bulb is reduced to the patch of gland pores, without its own lumen or duct. http://purl.obolibrary.org/obo/SPD_0000141 stalk of spermatheca The segment of duct between the primary and secondary spermatheca. http://purl.obolibrary.org/obo/SPD_0000142 nubbin A nonfunctional, only partially formed, i.e. vestigial, spigot, either morphologically singular or multiple. http://purl.obolibrary.org/obo/SPD_0000147 spigot base The base of a spigot, wider than the apical shaft. It is probably homologous with a setal socket. http://purl.obolibrary.org/obo/SPD_0000153 spigot shaft The distal, elongate part of the spigot, with a orifice at the tip through which the silk is extruded. It is probably homologous with a setal shaft. http://purl.obolibrary.org/obo/SPD_0000163 alveolus The concave ventral surface of the male palpal cymbium, where the copulatory bulb is attached. http://purl.obolibrary.org/obo/SPD_0000164 alveolus retromargin The retrolateral margin of the alveolus. http://purl.obolibrary.org/obo/SPD_0000165 alveolus promargin The prolateral margin of the alveouls. http://purl.obolibrary.org/obo/SPD_0000168 copulatory bulb The genital structure of the male spider containing the spermophor and attached to the palpal tarsus; rarely fused to the tarsus, as in some Oonopidae, from which it can be differentiated by lacking setae . http://purl.obolibrary.org/obo/SPD_0000169 petiolus A strongly sclerotized and thickened region within the wall of the basal hematodochal membrane. http://purl.obolibrary.org/obo/SPD_0000172 fundus The blind end of the spermophor in the subtegulum. http://purl.obolibrary.org/obo/SPD_0000181 sclerite of copulatory bulb A sclerotized piece inserted on another sclerotized structure of the copulatory bulb through a membranous joint. http://purl.obolibrary.org/obo/SPD_0000184 cheliceral boss A large basal condyle on the ectal surface of the paturon, contacting with the margin of the carapace. http://purl.obolibrary.org/obo/SPD_0000185 promargin The anterior margin of the cheliceral furrow in Araneomorphae (mesal margin in Mygalomorphae). http://purl.obolibrary.org/obo/SPD_0000186 retromargin The posterior margin of the cheliceral furrow in Araneomorphae (ectal margin in Mygalomorphae). http://purl.obolibrary.org/obo/SPD_0000197 venom outlet The orifice in the fang tip where the venom gland discharges. http://purl.obolibrary.org/obo/SPD_0000198 serrula A row of tiny teeth along the anterior edge of the endite. http://purl.obolibrary.org/obo/SPD_0000199 endite apical tuft seta A cluster of plumous, curved setae arising from the dorso-distal surface of the endite. http://purl.obolibrary.org/obo/SPD_0000202 female palpal tarsus ventral seta Any of the ventral setae on the female palpal tarsus. http://purl.obolibrary.org/obo/SPD_0000203 female palpal tarsus apical seta Any of the apical setae on the female palpal tarsus. http://purl.obolibrary.org/obo/SPD_0000216 tactile hair appendages prosoma Any of the tactile hairs on the prosoma appendages. http://purl.obolibrary.org/obo/SPD_0000218 scale appendages prosoma Small setae without innervation, bent in an obtuse angle just after the socket; can be of several shapes, including cylindrical, feathery, or flat. http://purl.obolibrary.org/obo/SPD_0000223 claw tuft shaft base The base of the claw tuft setal shaft, just above its insertion on the socket. http://purl.obolibrary.org/obo/SPD_0000239 sustentaculum An apical, ventral prolateral macroseta proximal to the membranous division at base of claws. http://purl.obolibrary.org/obo/SPD_0000246 booklung cover The area of opisthosomal cuticle just ventral to the booklung, usually more sclerotized and with a different sculpture than the neighboring opisthosomal cuticle. http://purl.obolibrary.org/obo/SPD_0000249 booklung leaves internal spacer Each of the hollow cuticular columns arising from the ventral cuticle of the booklung leaf, which prevents the collapsing of the leaf. http://purl.obolibrary.org/obo/SPD_0000251 epiandric spigot A spigot on the male epiandrum. http://purl.obolibrary.org/obo/SPD_0000253 spigot of anterior lateral spinneret A spigot on the anterior lateral spinneret. http://purl.obolibrary.org/obo/SPD_0000255 major ampullate field A partly sclerotized sector on the spinning field of the anterior lateral spinneret, bearing the major ampullate gland spigots and associated sensilla. Some of the relatively basal Araneomorphae (filistatids, eresids) have, in addition to a mesal marginal cluster, one or more major ampullate spigots mixed among the piriforms. http://purl.obolibrary.org/obo/SPD_0000266 triad of posterior lateral spinneret A functional group of spigots on the posterior lateral spinneret, formed by one modified spigot flanked by two spigots. http://purl.obolibrary.org/obo/SPD_0000268 embolus tip The end of the embolus containing the sperm outlet. http://purl.obolibrary.org/obo/SPD_0000274 seta appendage prosoma Any of the setae on the prosoma appendages. http://purl.obolibrary.org/obo/SPD_0000278 seta anal tubercle A seta on the anal tubercle. http://purl.obolibrary.org/obo/SPD_0000280 bursa A generalized term for a pouch in the anterior section of the female genitalia, arising internally from the epigastric fold or uterus externus. http://purl.obolibrary.org/obo/SPD_0000283 posterior diverticulum A chitinized sac arising from the posterior wall of the uterus externus. http://purl.obolibrary.org/obo/SPD_0000284 uterus externus The distal part of the uterus, lined by cuticle and opening into the gonopore. http://purl.obolibrary.org/obo/SPD_0000285 male palpal patellar process A sclerotized process on the male palpal patella. http://purl.obolibrary.org/obo/SPD_0000288 labrum The upper lip, usually covered by the chelicerae and not easily visible. http://purl.obolibrary.org/obo/SPD_0000289 labium The anterior median extension of the sternum, it may be articulated through a soft membrane. http://purl.obolibrary.org/obo/SPD_0000295 precoxal triangle Each of the triangular sclerotized extensions from the sternum, their tips pointing to the middle of the coxa bases. http://purl.obolibrary.org/obo/SPD_0000296 intercoxal sclerite Each of the triangular sclerotized extensions from the sternum, between the coxae. http://purl.obolibrary.org/obo/SPD_0000300 pleural area The area between the carapace and the sternum, where the leg coxae articulate. http://purl.obolibrary.org/obo/SPD_0000303 anterior midgut The portion of the midgut contained in the prosoma. http://purl.obolibrary.org/obo/SPD_0000304 anterior midgut diverticle A finger-like extension of the anterior midgut, often extending into a leg coxa. http://purl.obolibrary.org/obo/SPD_0000305 opisthosomal seta A seta on the opisthosoma. http://purl.obolibrary.org/obo/SPD_0000307 scale opisthosoma A scale on the opisthosomal cuticle. http://purl.obolibrary.org/obo/SPD_0000317 chorion The outer layer of the egg, composed of non-cellular secretion, produced by the female genital tract. http://purl.obolibrary.org/obo/SPD_0000319 cribellate silk band A complex silk structure composed by fibers from multiple gland spigot types: cribellar fibers, axial lines, and often a reserve wrap. http://purl.obolibrary.org/obo/SPD_0000320 cribellate fiber A cribellar silk fiber composing the adhesive mat of the cribellate silk band. http://purl.obolibrary.org/obo/SPD_0000322 baseplate of attachment disk The patch of silk produced by the piriform gland spigots to attach the ampullate fibers to the substrate. http://purl.obolibrary.org/obo/SPD_0000323 eggsac layer A layer of silk fibers on the eggsac. http://purl.obolibrary.org/obo/SPD_0000325 trochanter eclosion tooth A cuticular projection on the palpal trochanter of the postembryo, that helps piercing the chorion during eclosion. http://purl.obolibrary.org/obo/SPD_0000326 attachment disk A network of piriform glue-coated fibres, which cement the dragline in the central part of the disc and are attached to the substrate in the lateral parts of the disc. http://purl.obolibrary.org/obo/SPD_0000330 sigilla Circular impressions or dimples on the opisthosoma and sternum of some spiders representing points of muscle attachment and endoskeletal attachments. http://purl.obolibrary.org/obo/SPD_0000331 appendage of prosoma An appendage of the prosoma. http://purl.obolibrary.org/obo/SPD_0000343 tapetum Light reflecting crystalline structure behind the retinal cells of the secondary eyes. http://purl.obolibrary.org/obo/SPD_0000345 fang furrow The groove of the chelicera into which the fang closes. http://purl.obolibrary.org/obo/SPD_0000352 macroseta shaft The shaft of the macroseta. http://purl.obolibrary.org/obo/SPD_0000353 setal barb Each of the tiny cuticular projections on the setal shafts. http://purl.obolibrary.org/obo/SPD_0000356 opisthosomal cuticle The cuticle of the opisthosoma. http://purl.obolibrary.org/obo/SPD_0000359 seta An articulate cuticular outgrowth, often inervated to conform a mechanical or chemical sensillium. http://purl.obolibrary.org/obo/SPD_0000360 setal socket The cuticular alveolus and surrounding rim where the setal shaft articulates. http://purl.obolibrary.org/obo/SPD_0000362 tactile hair appendages prosoma shaft The shaft of a tactile hair on prosoma appendages. http://purl.obolibrary.org/obo/SPD_0000363 spinning field The membranous surface on the spinnerets bearing spigots. http://purl.obolibrary.org/obo/SPD_0000364 spigot Tiny cylindrical extension of the spinnerets from which silk is extruded. http://purl.obolibrary.org/obo/SPD_0000370 tartipore A cuticular scar, morphologically singular or multiple, that results, after ecdysis, from a collared opening forming in the exoskeleton during proecdysis; the opening accommodates a silk gland duct, allowing it to remain attached to a spigot on the old exoskeleton during proecdysis. http://purl.obolibrary.org/obo/SPD_0000386 bothrium distal plate The distal plate of the socket of trichobothria. http://purl.obolibrary.org/obo/SPD_0000390 metatarsus dorsal stopper A cuticular overhang that makes contact with an opposing step in the tarsus and prevents overflexion of the tarsus-metatarsus joint. The contact with the tarsal step triggers a signal from the vibration sense organ, a lyriform organ immediately behind the metatarsal stopper. http://purl.obolibrary.org/obo/SPD_0000391 bothrium proximal plate The proximal plate of the socket of trichobothria. http://purl.obolibrary.org/obo/SPD_0000397 eye lens The external, transparent cuticular structure of the eye. http://purl.obolibrary.org/obo/SPD_0000401 scale carapace A scale on the carapace cuticle. http://purl.obolibrary.org/obo/SPD_0000406 cribellate band axial line A paired traight, thick silk fiber in the cribellate silk band. http://purl.obolibrary.org/obo/SPD_0000407 cribellate band reserve wrap A paired, highly curled and thick silk fiber in the cribellate silk band. http://purl.obolibrary.org/obo/SPD_0000427 tracheal system The respiratory system lined by cuticle, composed by tracheae and booklungs. http://purl.obolibrary.org/obo/SPD_0000428 booklung A respiratory structure made of many hollow leaves lined by cuticle, connecting to the exterior by a spiracle. http://purl.obolibrary.org/obo/SPD_0000430 booklung leaf Each of the cuticular lamella of the booklung. The lamella are filled with air, and their thin cuticle allows for gas exchange. http://purl.obolibrary.org/obo/SPD_0000431 booklung atrium A space behind the booklung spiracle, where the booklung leaves arise. http://purl.obolibrary.org/obo/SPD_0000437 lateral respiratory structure A generalized tracheal structure on the 2nd or 3rd opisthosomal segment, may be represented as a lateral trachea or a booklung. http://purl.obolibrary.org/obo/SPD_0000438 median respiratory structure A generalized tracheal structure on the 2nd or 3rd opisthosomal segment, may be represented as a trachea or an elongate apodeme. http://purl.obolibrary.org/obo/SPD_0000440 anterior respiratory system The part of the respiratory system corresponding to the second segment of the opisthosoma, including the anterior booklungs and its derivations. http://purl.obolibrary.org/obo/SPD_0000444 leg cuticle The cuticle of leg articles. http://purl.obolibrary.org/obo/SPD_0000445 fang base The basal part of the fang, between its insertion and the fang shaft. http://purl.obolibrary.org/obo/SPD_0000446 fang shaft The apical part of the fang, having the fang shaft serrula. http://purl.obolibrary.org/obo/SPD_0000447 fang shaft serrula A line of denticles along the concave side of the fang. http://purl.obolibrary.org/obo/SPD_0000449 cribellate silk carding behavior The stereotyped movements used by cribellate spiders to card the band of cribellar fibrils using the calamistrum. It involves the movement of the carding leg IV of which the calamistrum is being used, and a contralateral leg to support the carding leg. http://purl.obolibrary.org/obo/SPD_0000458 basal expansion of trichobothria shaft The bulbous expansion on the trichobothrial shaft base, just above its insertion point. http://purl.obolibrary.org/obo/SPD_0000461 tarsal organ capsule In entelegyne spiders the tarsal organ is protected by a capsule with a small opening. http://purl.obolibrary.org/obo/SPD_0000462 tarsal organ sensillum Each of the tarsal organ sensilla with rimmed pores, where the sensory dendrites end. http://purl.obolibrary.org/obo/SPD_0000464 claw lever The sclerotized median piece on the pretarsus, where the two tendons controlling the movement of the claws are connected (pretarsus levator and pretarsus depressor). It articulates with the tarsus by two basal lateral condyles (struts). The superior claws articulate with the claw lever by a movable joint. When present, the inferior claw arises from the pretarsus. http://purl.obolibrary.org/obo/SPD_0000469 thoracic furrow Each of the radial superficial markings on the carapace corresponding to the limits of the underlying leg muscles. http://purl.obolibrary.org/obo/SPD_0000472 promarginal rake seta Each of the setae aligned on the cheliceral promargin in front of the fang base. They have the barbs disposed on longitudinal lines. http://purl.obolibrary.org/obo/SPD_0000474 palpal claw lever The claw lever of the palp. http://purl.obolibrary.org/obo/SPD_0000477 patellar indentation An unsclerotized area from the retrolateral distal margin of the patella to the lyriform organs. The area of the retrolateral indentation is distorted by the movement. http://purl.obolibrary.org/obo/SPD_0000480 tarsal dorsobasal step A cuticular step or ridge that makes contact with the opposing metatarsus dorsal stopper and prevents overflexion of the tarsus-metatarsus joint. http://purl.obolibrary.org/obo/SPD_0000482 calamistrum seta tooth Each of the small tooth forming the calamistrum seta comb. http://purl.obolibrary.org/obo/SPD_0000483 claw tuft plate A paired plate on the feet, at the side of the pretarsus, bearing the insertions of the claw tuft setae. The claw tuft plate is articulated ventrally through a movable suture or membrane, the claw tuft suture. http://purl.obolibrary.org/obo/SPD_0000485 foot slit suture A ventral unsclerotized suture ventrally on the tarsus tip, uniting the foot slits from both sides. The suture seemingly provides room for cuticle deformation upon stress, and thus increased sensitivity on the slit sensilla. http://purl.obolibrary.org/obo/SPD_0000486 claw lever file A series of longitudinal ridges at each side on the claw lever. http://purl.obolibrary.org/obo/SPD_0000488 prosoma cuticle The rigid cuticle of prosoma and its appendages. http://purl.obolibrary.org/obo/SPD_0000490 cluster of setae An anatomically distinct cluster of setae, such as a field, patch, comb, etc. http://purl.obolibrary.org/obo/SPD_0000497 apical pore of chemosensory seta The apical pore in the chemosensory setal shaft, where the chemosensory dendrites end. http://purl.obolibrary.org/obo/SPD_0000499 chemosensory seta shaft The shaft of the chemosensory seta. http://purl.obolibrary.org/obo/SPD_0000500 lorum 1 The dorsal sclerite on the pedicel closer to the carapace. http://purl.obolibrary.org/obo/SPD_0000501 lorum 2 The dorsal sclerite on the pedicel closer to the opisthosoma. http://purl.obolibrary.org/obo/SPD_0000505 tracheal mesh A mesh of cuticular extensions lining the luminal side of the tracheal cuticle. http://purl.obolibrary.org/obo/SPD_0000507 tracheal cuticle The thin cuticle of the trachea, across which the gas interchange occurs. http://purl.obolibrary.org/obo/SPD_0000512 flanking spigots of triad The two spigots of the triad at each side of the modified gland spigot. Depending on the taxonomic group, the flanking spigots may be aggregate, paracribellar, or a form not yet characterized of gland spigots. http://purl.obolibrary.org/obo/SPD_0000513 piriform field The field of piriform gland spigots on the anterior lateral spinnerets. http://purl.obolibrary.org/obo/SPD_0000514 pore of spigot shaft The distal pore of the spigot shaft from where the silk is extruded. http://purl.obolibrary.org/obo/SPD_0000517 anus An orifice on the anal tubercle where the stercoral pocket discharges. http://purl.obolibrary.org/obo/SPD_0000519 hematodocha Any membrane that allows or actively produces movement of the copulatory bulb or of parts of it. http://purl.obolibrary.org/obo/SPD_0000520 division of copulatory bulb Any of the main sections of the male copulatory bulb, delimited by hematodochae. http://purl.obolibrary.org/obo/SPD_0000525 seta of cymbium Any of the setae on the male palpal cymbium. http://purl.obolibrary.org/obo/SPD_0000527 male palpal femoral process A sclerotized process on the male palpal femur. http://purl.obolibrary.org/obo/SPD_0000534 groove of cymbium A elongate depression forming a canal on the surface of cymbium. http://purl.obolibrary.org/obo/SPD_0000537 wall of spermophor The cuticular wall of the spermophor. http://purl.obolibrary.org/obo/SPD_0000538 embolar process A sclerotized process on the embolus. http://purl.obolibrary.org/obo/SPD_0000541 duct of epigynal cuticular gland The cuticular duct of the epigynal cuticular gland. http://purl.obolibrary.org/obo/SPD_0000542 pore of epigynal cuticular gland The pore on the epigynal plate where the epigynal cuticular gland discharges. http://purl.obolibrary.org/obo/SPD_0000543 epigynal fold Each of the two folds on the epigyne, between the lateral lobes and the median field. http://purl.obolibrary.org/obo/SPD_0000545 duct of female genitalia A sclerotized hollow tube connecting structures of the female genitalia, usually for the transit of sperm. http://purl.obolibrary.org/obo/SPD_0000546 duct of accessory bulb The segment of duct connecting the accessory bulb to the copulatory duct, occasionally directly to the spermatheca. http://purl.obolibrary.org/obo/SPD_0000549 receptacle A generic term for hollow cuticular structures in the female genitalia, whose presumed function is sperm storage. The term is used mainly in Dysderoidea, Palpimanoidea or Austrochiloidea, where the homology with the spermathecae as found in other spiders is not well defined. http://purl.obolibrary.org/obo/SPD_0000550 anterior receptacle A receptacle arising from the anterior wall of the epigastric furrow, anterior to the uterus externus. http://purl.obolibrary.org/obo/SPD_0000551 gland of anterior receptacle A gland with a cuticular duct discharging in the anterior receptacle. http://purl.obolibrary.org/obo/SPD_0000552 postepigastric invagination A small invagination, often sclerotized, just posterior to the anterior booklung spiracle. It is found in lamponids and some other spiders. http://purl.obolibrary.org/obo/SPD_0000553 anterior section of female genitalia The section of the female genitalia anterior to the uterus externus. Most spiders only have genital structures in this section. http://purl.obolibrary.org/obo/SPD_0000554 posterior section of female genitalia The section of the female genitalia posterior to the uterus externus. Only some spider groups have genital structures in this section, for example most Dysderoidea. http://purl.obolibrary.org/obo/SPD_0000555 gland pore of accessory bulb A pore on the accessory bulb where a gland duct is connected. http://purl.obolibrary.org/obo/SPD_0000556 duct of gland of accessory bulb The cuticular duct connected to a pore on the accessory bulb. http://purl.obolibrary.org/obo/SPD_0000560 cribellum base The short basal article of the cribellum, visible as a sclerotized band bearing setae. http://purl.obolibrary.org/obo/SPD_0000564 retina The internal layer of the eye containing the photosensitive visual cells and the pigment cells. http://purl.obolibrary.org/obo/SPD_0000565 vitreous body The layer of transparent cells between the eye lens and the retina. http://purl.obolibrary.org/obo/SPD_0000566 ocular area The region of the cephalic area bearing the eyes. http://purl.obolibrary.org/obo/SPD_0000567 eye cup The globular or conical stucture including all internal elements of the eye. http://purl.obolibrary.org/obo/SPD_0000570 retrocoxal hymen An unsclerotized, often elevated patch, on the retrolateral surface of the coxa. It occurs almost exclusively on coxa I, only rarely as well on coxae II and III. http://purl.obolibrary.org/obo/SPD_0000573 base of cylindrical gland spigot The base of a cylindrical gland spigot. http://purl.obolibrary.org/obo/SPD_0000574 shaft of cylindrical gland spigot The shaft of a cylindrical gland spigot. http://purl.obolibrary.org/obo/SPD_0000579 lorum posterior apodeme The paired apodemes extending posteriorly from the lorum into the opisthosoma. When the lorum 2 is well defined, the posterior apodemes arise from it. http://purl.obolibrary.org/obo/SPD_0000581 lorum anterior apodeme The paired apodemes extending anteriorly from the lorum into the prosoma. When the lorum 1 is well defined, the apodemes arise from it. http://purl.obolibrary.org/obo/SPD_0000582 pedicel sensilla stripe Each of the paired series of slit sensilla at the base of the lorum posterior apodeme. The stripes are placed on two lateral longitudinal series, each sensillum approximately perpendicular to the body axis. Most entelegynes have such stripe of sensilla, apparently on the base of the apodeme. When the lorum 2 is present, it bears the slit sensilla and the poserior apodemes as a single piece. http://purl.obolibrary.org/obo/SPD_0000586 valve The modified area between uterus externus and uterus internus with interlocking ridges. http://purl.obolibrary.org/obo/SPD_0000589 ejaculatory duct Unpaired region of the male reproductive system that connects the gonopore with the deferent duct. Sometimes, its proximal portion is enlarged, forming the seminal vesicle. http://purl.obolibrary.org/obo/SPD_0000591 uterus internus The proximal part of the uterus, without a cuticular lining and continuing proximally into the oviduct. http://purl.obolibrary.org/obo/SPD_0000602 opisthosomal endosternite 5 The endosternite of the opisthosomal segment 5, where the muscle dilator of the anus inserts. http://purl.obolibrary.org/obo/SPD_0000609 orb web A preying web with stereotyped architecture, composed of frame, radii and sticky spiral. http://purl.obolibrary.org/obo/SPD_0000612 hemolymph vascular system The part of the circulatory system that is composed of the central pumping organ, the heart, and arteries which emanate from it and open out into the hemolymph lacunar system. http://purl.obolibrary.org/obo/SPD_0000613 hemolymph lacunar system The open part of the circulatory system, which irrigates the tissues. http://purl.obolibrary.org/obo/SPD_0000614 sinus For Wirkner to do. http://purl.obolibrary.org/obo/SPD_0000615 lacuna For Wirkner to do. http://purl.obolibrary.org/obo/SPD_0000616 anterior aorta The unpaired vessel that emanates from the anterior end of the heart. http://purl.obolibrary.org/obo/SPD_0000617 posterior aorta The unpaired vessel that emanates from the posterior end of the heart. http://purl.obolibrary.org/obo/SPD_0000618 cardiac artery A paired vessel that emanates from the heart. http://purl.obolibrary.org/obo/SPD_0000621 central nervous system The condensed ganglia in the prosoma. http://purl.obolibrary.org/obo/SPD_0000622 peripheral nervous system The nerves connecting the sensory and motor structures with the central nervous system. http://purl.obolibrary.org/obo/SPD_0000623 brain A brain is a cluster of neurons. It is part of a nervous system. It is the most prominent anterior condensation of neurons and may also include further types of cells, including glial cells and pigment cells. http://purl.obolibrary.org/obo/SPD_0000624 central body An unpaired neuropil in the rear part of the brain. http://purl.obolibrary.org/obo/SPD_0000625 corpora pedunculata A paired neuropil in the brain, mushroom-shaped. http://purl.obolibrary.org/obo/SPD_0000626 subesophageal ganglion The central body is an unpaired midline neuropil. It is a part of the central complex. It is composed of tangential and columnar neurons. These neurons form horizontal layers and provide a connection to the lateral accessory lobes and the protocerebral bridge. Subpopulations of the columnar neurons cross the midline of the syncerebrum within the central body or before entering the central body. http://purl.obolibrary.org/obo/SPD_0000629 esophagus A narrow channel in the foregut, between the pharynx and the sucking stomach. http://purl.obolibrary.org/obo/SPD_0000630 sucking stomach The most posterior part of the foregut, the main pump for food intake. http://purl.obolibrary.org/obo/SPD_0000634 palpal femur The 3rd segment of the palp, between trochanter and patella. http://purl.obolibrary.org/obo/SPD_0000642 palpal patella The 4th segment of the palp, between femur and tibia. http://purl.obolibrary.org/obo/SPD_0000643 palpal tarsus The 6th segment of the palp, between tibia and pretarsus. http://purl.obolibrary.org/obo/SPD_0000644 palpal tibia The 5th segment of the palp, between patella and tarsus. http://purl.obolibrary.org/obo/SPD_0000645 palpal trochanter The 2nd segment of the palp, between coxa and femur. http://purl.obolibrary.org/obo/SPD_0000646 palpal femoral thorn A short seta with raised base on the prolateral basal surface of the palpal femur, most often used for stridulation against opposing ridges on the chelicerae. http://purl.obolibrary.org/obo/SPD_0000647 gut The tube of the digestive system from the pharynx to the anus. http://purl.obolibrary.org/obo/SPD_0000648 pharynx The most anterior part of the foregut, arising between the labium and labrum and leading into the esophagus. http://purl.obolibrary.org/obo/SPD_0000653 claw tuft seta clasping fold The folded base of a claw tuft seta, where the claw tuft clasper locks. http://purl.obolibrary.org/obo/SPD_0000654 claw tuft clasping mechanism A mechanism made of a claw tuft clasper in the superior claws and locking on the folded base of a claw tuft seta (the claw tuft seta clasping fold). http://purl.obolibrary.org/obo/SPD_0000657 bursal membranous sac Each spherical or oval sclerotized sac connected by a thin duct to the bursa. The sacs occur in groups, sometimes in definite patches, on the bursa of palpimanoids. Each sac have several gland ducts discharging on them. http://purl.obolibrary.org/obo/SPD_0000659 calamistrum seta comb A comb made of small tooth aligned, on the calamistrun seta. The comb may have one to several lines of teeth. http://purl.obolibrary.org/obo/SPD_0000661 process The part of the integument that is raised or projected and not articulated or delimited by conjunctiva. http://purl.obolibrary.org/obo/SPD_0000662 conjunctiva The area of the integument that is weakly sclerotized, with thin exocuticle. http://purl.obolibrary.org/obo/SPD_0000663 sclerite The area of the integument that is strongly sclerotised, with thick exocuticle and is surrounded by conjunctivae. http://purl.obolibrary.org/obo/SPD_0000664 depression An area of the integument that is indented. http://purl.obolibrary.org/obo/SPD_0000682 Fickert's gland A more or less globular enlargement of the spermophor in the radix. http://purl.obolibrary.org/obo/SPD_0000683 spiracle The area of the integument that forms the opening of a book lung or trachea on the surface of the body. http://purl.obolibrary.org/obo/SPD_0000685 plectrum The part of the stridulatory organ that scrapes on the file to produce sound or vibrations. http://purl.obolibrary.org/obo/SPD_0000686 stridulatory file The part of the stridulatory organ where the plectrum scrapes, to produce sound or vibrations. http://purl.obolibrary.org/obo/SPD_0000693 tarsal pseudosegment A partial or complete subdivision of the tarsus by conjunctiva. http://purl.obolibrary.org/obo/SPD_0000699 spermatheca A hollow cuticular structure in the female genitalia, partly or completely surrounded by glandular tissue, that is used for sperm storage. It is connected to the uterus externus or bursa by the fertilization duct. http://purl.obolibrary.org/obo/SPD_0000703 suprategulum A part of the linyphiid tegulum that bears the column and through which the spermophor passes. http://purl.obolibrary.org/obo/SPD_0000706 pars pendula A loose membranous flap on the concave side of the embolus. http://purl.obolibrary.org/obo/SPD_0000708 tibial crack A transversal suture near the base of the male tibia. http://purl.obolibrary.org/obo/SPD_0000709 scutum A sclerotized plate in the opisthosoma. http://purl.obolibrary.org/obo/SPD_0000720 cell component The anatomical structure that is a direct part of the cell. http://purl.obolibrary.org/obo/SPD_0000730 cytoplasm All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures. http://purl.obolibrary.org/obo/SPD_0000739 cytoskeletal part Any constituent part of the cytoskeleton, a cellular scaffolding or skeleton that maintains cell shape, enables some cell motion (using structures such as flagella and cilia), and plays important roles in both intra-cellular transport (e.g. the movement of vesicles and organelles) and cellular division. Includes constituent parts of intermediate filaments, microfilaments, microtubules, and the microtrabecular lattice. http://purl.obolibrary.org/obo/SPD_0000751 postcentriolar elongation of the nucleus An elongation of the nucleus posterior to the base of the axoneme, i.e. the centrioles. http://purl.obolibrary.org/obo/SPD_0000752 anterior part of the sperm nucleus The part of the sperm nucleus anterior to the base of the axoneme, i.e. the centrioles. http://purl.obolibrary.org/obo/SPD_0000766 seminal vesicle Enlarged proximal region of the ejaculatory duct. http://purl.obolibrary.org/obo/SPD_0000768 sperm transfer form The state in which spider sperm cells are transferred into the female genitalia. http://purl.obolibrary.org/obo/SPD_0000773 funicle The stalk connecting the bulge containing the oocyte in the ovarian epithelium with the lumen of the ovary. http://purl.obolibrary.org/obo/SPD_0000783 posterior midgut diverticle A branch of the posterior midgut consisting of digestive and secretory cells. http://purl.obolibrary.org/obo/SPD_0000792 chromosomal part Any constituent part of a chromosome, a structure composed of a very long molecule of DNA and associated proteins (e.g. histones) that carries hereditary information. http://purl.obolibrary.org/obo/SPD_0000795 cytoplasmic part Any constituent part of the cytoplasm, all of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures. http://purl.obolibrary.org/obo/SPD_0000817 foot The distal part of the spider leg, near the claws, which interacts more closely with the substrate and silk cables. The foot is a tight morphological and functional unit, and includes the distal end of the tarsus and its specialized setae, plus the pretarsus and its claws. http://purl.obolibrary.org/obo/SPD_0000825 cuticular structure A portion of cuticle making a definite structure. http://purl.obolibrary.org/obo/SPD_0000007 2nd opisthosomal segment (epigastrium) http://purl.obolibrary.org/obo/SPD_0000009 3rd opisthosomal segment (posterior booklungs and tracheae) http://purl.obolibrary.org/obo/SPD_0000032 median tracheae or entapophyses http://purl.obolibrary.org/obo/SPD_0000047 intestine http://purl.obolibrary.org/obo/SPD_0000056 prosoma segment http://purl.obolibrary.org/obo/SPD_0000057 external opisthosoma http://purl.obolibrary.org/obo/SPD_0000118 posterior booklung or lateral tracheae http://purl.obolibrary.org/obo/SPD_0000145 male serrula http://purl.obolibrary.org/obo/SPD_0000146 male maxillary gland http://purl.obolibrary.org/obo/SPD_0000148 male endite apical tuft seta http://purl.obolibrary.org/obo/SPD_0000195 promarginal seta http://purl.obolibrary.org/obo/SPD_0000196 retromarginal seta http://purl.obolibrary.org/obo/SPD_0000215 agg gland spigot http://purl.obolibrary.org/obo/SPD_0000217 socket hair appendages prosoma http://purl.obolibrary.org/obo/SPD_0000247 booklung cover internal surface http://purl.obolibrary.org/obo/SPD_0000252 lateral tracheae internal structure http://purl.obolibrary.org/obo/SPD_0000275 median trachea internal structure http://purl.obolibrary.org/obo/SPD_0000306 hair opisthosoma http://purl.obolibrary.org/obo/SPD_0000332 whole organism color http://purl.obolibrary.org/obo/SPD_0000336 prosoma color http://purl.obolibrary.org/obo/SPD_0000337 opisthosomal color http://purl.obolibrary.org/obo/SPD_0000338 setae patterns http://purl.obolibrary.org/obo/SPD_0000339 prosoma cuticle http://purl.obolibrary.org/obo/SPD_0000340 eye proportions http://purl.obolibrary.org/obo/SPD_0000341 eye relative positions http://purl.obolibrary.org/obo/SPD_0000347 trichobothrial patterns http://purl.obolibrary.org/obo/SPD_0000351 macrosetae patterns http://purl.obolibrary.org/obo/SPD_0000355 prosoma color http://purl.obolibrary.org/obo/SPD_0000387 sensilla appendage prosoma http://purl.obolibrary.org/obo/SPD_0000388 development http://purl.obolibrary.org/obo/SPD_0000389 cuticle legs and palp http://purl.obolibrary.org/obo/SPD_0000398 cuticle carapace http://purl.obolibrary.org/obo/SPD_0000399 hair carapace http://purl.obolibrary.org/obo/SPD_0000404 seta carapace http://purl.obolibrary.org/obo/SPD_0000405 macroseta http://purl.obolibrary.org/obo/SPD_0000436 tracheal tube http://purl.obolibrary.org/obo/SPD_0000441 anterior lateral respiratory structure http://purl.obolibrary.org/obo/SPD_0000442 anterior median respiratory structure http://purl.obolibrary.org/obo/SPD_0000448 behavioral entity http://purl.obolibrary.org/obo/TEMP#part_of part of http://purl.obolibrary.org/obo/TEMP#adjacent_to adjacent to