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Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

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<strong>Online</strong> <strong>Dictionary</strong> <strong>of</strong> <strong>Invertebrate</strong> <strong>Zoology</strong> 695plates n.pl. [L. plattus, flat] (ARTHRO: Insecta) In Diaspidinae,gland spines <strong>of</strong> the pygidium that are multiple branched,with or without a duct.platyform larva (ARTHRO: Insecta) An extremely flattenedlarva; an onisciform larva.Platyhelminthes n.pl. [Gr. platys, flat; helminthos, <strong>of</strong> worms]A phylum <strong>of</strong> acoelomate animals commonly called flatworms,including the flukes, tapeworms and turbellarians.platymyarian a. [Gr. platys, flat; mys, muscle] (NEMATA)Having fibers <strong>of</strong> the muscle cells adjacent and perpendicularto the hypodermis. see coelomyarian.plectanes n. [Gr. plektos, twisted] (NEMATA) Cuticular platesthat function as supports for the male genital papillae.plectolophe n. [Gr. plektos, twisted; lophos, crest] (BRACHIO)A lophophore where each branchium has a U-shaped sidearm with a double row <strong>of</strong> paired filamental appendages,terminating distally in a medial plano-spire normal tocommissural plane with a single row <strong>of</strong> paired appendages.plectolophous a.plectrum n. [L. plectrum, a tool for plucking a stringed instrument](ARTHRO: Insecta) In Coleoptera, a single scraperused against a roughened file (strigil) that causes a membraneto vibrate and therefore produce sound.plegma n.; pl. plegmata [Gr. plegma, plaited] (ARTHRO: Insecta)In scarabaeoid larvae, a single fold. see plegmatium,proplegmatium.plegmatium n.; pl. -tia [Gr. plegma, plaited] (ARTHRO: Insecta)In scarabaeoid larvae, a lateral paired area with aplicate, sclerotized surface, bordered by marginal plegmatedspines with acanthoparia.pleiomorphic, pleomorphic a. [Gr. pleion, more; morphe,form] Having the ability to change shape; polymorphic, ora type <strong>of</strong> polymorphism.pleiomorphism, pleomorphism n. [Gr. pleion, more; morphe,form] 1. Polymorphism. 2. A type <strong>of</strong> polymorphismexhibited as several different stages in a life cycle.pleiotrophy, pleiotropism n. [Gr. pleion, more; tropein, to

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