receptacle true 2009-09-03T03:48:27Z receptaculum spider_anatomy 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. Martin Ramirez posterior receptacle SPD:0000549