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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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912Maggenti and Gardnerginal wing vein.transverse septum (ARTHRO: Crustacea) In Cirripedia, thethin walled, normal to longitudinal septum, parallel to basis,dividing the parietal tubes into a series <strong>of</strong> cells.transverse striation A circular groove or arc whose plane isperpendicular to the longitudinal axis.transverse suture (ARTHRO: Insecta) In Diptera, a sutureacross the middle <strong>of</strong> the mesonotum <strong>of</strong> some species; usuallyincomplete in the center <strong>of</strong> the notum; in Tipulidae it isV-shaped.transverse wall (BRYO: Gymnolaemata) One <strong>of</strong> a pair <strong>of</strong> wallsseparating individual zooids in a linear series; perpendicularto direction <strong>of</strong> growth.trapezium n. [Gr. trapezion, small table] A four-sided figure,having no two sides parallel; trapeziform.trapezoid n. [Gr. trapezion, small table; eidos, shape] A planefour-sided figure in which two sides are parallel and twoare not. trapezoidal, trapeziform a.trema n.; pl. tremata [Gr. trema, hole] (MOLL: Gastropoda)An orifice in the outer wall <strong>of</strong> some shells, excretory infunction; may occur singly or in a series.Trematoda n. [Gr. trema, hole; eidos, form] A class <strong>of</strong> Platyhelminthes,commonly call flukes; all are endoparasiticflatworms.trenchant a. [OF. trenchier, to cut] Having a sharp edge.trepan n. [Gr. trypanon, borer] (ANN: Polychaeta) Part <strong>of</strong> theeversible pharynx containing chitinized teeth anteriorly, especiallySyllidae.triact n. [Gr. treis, three; aktis, ray] (PORIF) A microsclere spiculewith three rays. see regular triact, saggital triact.triactinal a. [Gr. treis, three; aktis, ray] (PORIF) Having athree-pointed or rayed spicule. see diactinal, tetractinal,monactinal.triad n. [Gr. treis, three; -ad, forms collective noun] An arrangement<strong>of</strong> three; a trinity.triaene n. [Gr. triaina, trident] (PORIF) A tetraxonid spicule

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