part of part of develops_from skin epidermis nail A horn-like keratin structure covering the dorsal aspect of the terminal phalanges of fingers and toes[WP]. A primate's nail consists of the unguis alone; the subunguis has disappeared BTO:0001719 CALOHA:TS-2034 EFO:0000956 EMAPA:35580 EV:0100159 FMA:54326 GAID:1320 MA:0002703 MAT:0000158 MESH:D009262 MIAA:0000158 OpenCyc:Mx4rvVjJv5wpEbGdrcN5Y29ycA The nails of humans and the claws are moth are highly similar. Both species have a proximal nail fold, cuticle, nail matrix, nail bed, nail plate, and hyponychium. Distinguishing features are the shape of the nail and the presence of an extended hyponychium in the mouse [PMC3579226] UBERON:0001705 UMLS:C0027342 Use this class for both the nails of primates and the homologous claws of mammals such as mouse. VHOG:0001361 XAO:0003103 claw galen:Nail nail/claw talon uberon distal limb integumentary appendage embryonic skin basal layer