thelycum

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• thelycum — n. [Gr. thelykos, feminine] (ARTHROPODA: Crustacea) In some female Decapoda, an external pocket on the ventral side of the thorax, functioning as a seminal receptacle …   Dictionary of invertebrate zoology

• 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

• closed thelycum — One in which the seminal vesicles are present. See: thelycum [Perez Farfante and Kensley, 1997] …   Crustacea glossary

• open thelycum — One in which the seminal vesicles are absent. See: thelycum [Perez Farfante and Kensley, 1997] …   Crustacea glossary

• Prawn — For other uses, see Prawn (disambiguation). Dendrobranchiata Temporal range: Famennian–Recent …   Wikipedia

• petasma — A complex genital structure attached to the mesial margins of the protopodites of the first pair of pleopods in male penaeidean shrimps [Chace and Hobbs, 1969]. Abdominal appendage modified as gonapophysis in males of some eucarids, syncarids,… …   Crustacea glossary

• seminal receptacles — Sacs for storage of spermatophores or sperm, usually on sternite of thoracic somite 7 (sometimes spermathecae), associated with thelycum in Dendrobranchiata [Poore, 2004]. Unpaired or paired bulbous or tubular sacs associated with the thelycum… …   Crustacea glossary

• Krill — Euphausiacea A northern krill (Meganyctiphanes norvegica) Scientific classification Kingdom …   Wikipedia

• 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

• seminal receptacle — Diverticulum of oviduct or external pouch (some pygocephalomorph eocarids, isopod peracarids, and decapods) for storing spermatozoa delivered by male. (Syn. receptaculum seminalis) [Moore and McCormick, 1969]. Diverticulum of oviduct or external… …   Crustacea glossary