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Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

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260Maggenti and Gardnerditrysian moths (Bombycoidea), a strand formed by theretinula cells.C-shaped Semi-circular or cresent shape; U-shaped.ctene n. [Gr. kteis, comb] (CTENO) The swimming plate; therow <strong>of</strong> ctenes is a costa; a comb-rib.ctenidium n.; pl. -nida [Gr. dim. kteis, comb] 1. (ARTHRO: Insecta)a. A series <strong>of</strong> stout, peg-like spines on the head(genal ctenidium) and first thoracic tergite (pronotalctenidium) <strong>of</strong> many fleas. b. A row <strong>of</strong> comblike bristles onthe hind tarsus <strong>of</strong> Psocoptera. 2. (CTENO/MOLL) A respiratorygill-comb. see gill.cteniform a. [Gr. kteis, comb; L. forma, shape] Comb-shaped.ctenocyst n. [Gr. kteis, comb; kystis, bladder] (CTENO) Anaboral sense organ; the apical organ; the balancing organ.ctenodont shell (MOLL: Bivalvia) In some groups <strong>of</strong> early originhaving hinges with many teeth transverse to the margin.see cryptodont shell.ctenoid a. [Gr. kteis, comb; eidos, form] Comblike; having amargin <strong>of</strong> small teeth.ctenolium n. [Gr. dim. kteis, comb] (MOLL: Bivalvia) In somePectinacea, a comblike row <strong>of</strong> small teeth on the lower side<strong>of</strong> the byssal notch.Ctenophora, ctenophores n., n.pl. [Gr. kteis, comb; phoreus,bearer] A phylum <strong>of</strong> marine coelenterates commonly calledsea walnuts or comb jellies, that are free swimming andbiradially symmetrical with 8 rows <strong>of</strong> fused ciliary plates(combs or ctenes) at some stage <strong>of</strong> their life.ctenopod n. [Gr. kteis, comb; pous, foot] (ARTHRO: Crustacea)An appendage (cirrus) <strong>of</strong> barnacles with long paired setaeon segments <strong>of</strong> lesser curvature and a few setae distally oneach articulation <strong>of</strong> greater curvature; like a comb. seeacanthopod, lasiopod.ctenose a. [Gr. kteis, comb] Comblike.Ctetology n. [Gr. ktetos, that may be had; logos, discourse]That aspect <strong>of</strong> biology concerned with acquired characters.cubical a. [L. cubus, cube] Cube-shaped.

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