copulatory stylet

copulatory stylet
(Order Isopoda):
Structure situated on endopod of pleopod 2 in males, used for transfer of spermatophore in some species; also referred to as appendix masculina [Kensley and Schotte, 1989].

Crustacea glossary. . 2011.

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  • copulatory male — A fully adult male. In the janiroidea isopods, the male is identified by a sperm tube on the second pleopod s stylet, which is open at its sharp distal tip. In some specimens at this terminal stage, the vas deferens is visible through the cuticle …   Crustacea glossary

  • appendix masculina — A lappet inserted between the appendix interna and the mesial margin of the second pleopod of most male shrimps. The presence or absence of an appendix masculina is the easiest way to distinguish males and females in most caridean shrimps, and in …   Crustacea glossary

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  • flatworm — /flat werrm /, n. any worm of the phylum Platyhelminthes, having bilateral symmetry and a soft, solid, usually flattened body, including the planarians, tapeworms, and trematodes; platyhelminth. [1895 1900; FLAT1 + WORM] * * * or platyhelminth… …   Universalium

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