paired receptacles — Invaginated into the cephalothoracic cavity, opening through well protected slits usually on anterior border of sternite XIV, or on anterior part of XIII. See: seminal receptacles [Perez Farfante and Kensley, 1997] … Crustacea glossary
unpaired receptacles — Non invaginated, opening either through an exposed median longitudinal slit flanked by lateral plates of sternite XIV, or openinng anterior to single plate. See: seminal receptacles [Perez Farfante and Kensley, 1997] … Crustacea glossary
reproductive system, animal — Introduction any of the organ systems by which animals reproduce. The role of reproduction is to provide for the continued existence of a species; it is the process by which living organisms duplicate themselves. Animals compete with… … Universalium
cirripede — ▪ crustacean Introduction any of the marine crustaceans of the infraclass Cirripedia (subphylum Crustacea). The best known are the barnacles. Adult cirripedes other than barnacles are internal parasites of marine invertebrates such as crabs … Universalium
thelycum — A specialized genital modification of the three posterior sternites in female penaeidean shrimps. (Pl. thelyca) [Chace and Hobbs, 1969]. External pocket on ventral side of thorax in panaeid female serving as seminal receptacle [McLaughlin, 1980] … Crustacea glossary
spider — spiderless, adj. spiderlike, adj. /spuy deuhr/, n. 1. any of numerous predaceous arachnids of the order Araneae, most of which spin webs that serve as nests and as traps for prey. 2. (loosely) any of various other arachnids resembling or… … Universalium
Spider — Taxobox name = Spiders image width = 250px image caption = an Orb weaver spider, Family: Araneidae regnum = Animalia phylum = Arthropoda subphylum = Chelicerata classis = Arachnida ordo = Araneae ordo authority = Clerck, 1757 diversity link =… … Wikipedia
Pedipalp — Thelyphonida, in dorsal view, with pedipalps highlighted in green … Wikipedia
antrum — (Subclass Copepoda): Atrium [Stachowitsch, 1992]. (Subclass Copepoda): In female reproductive system, invagination of ventral surface (sternite) of first abdominal segment (genital somite). Recieves common opening of both oviducts and openings of … Crustacea glossary
insemination — The act of placing or introducing sperm onto or into the thelycum or seminal receptacles of the female [Perez Farfante and Kensley, 1997] … Crustacea glossary