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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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<strong>Online</strong> <strong>Dictionary</strong> <strong>of</strong> <strong>Invertebrate</strong> <strong>Zoology</strong> 493the radular mass.jugal region 1. (ARTHRO: Crustacea) In Decapoda, the anterolateralpart on the ventral surface, located on oppositesides <strong>of</strong> the buccal cavity; pterygostomial region. 2. (AR-THRO: Insecta) The posterior basal lobe or area <strong>of</strong> a wingdemarcated from the vannal region by the jugal fold (plicajugalis).jugal sinus (MOLL: Polyplacophora) A depression between thesutural laminae <strong>of</strong> chitins.jugal tract (MOLL: Polyplacophora) The tegmentum surface,adjacent to the jugum.jugo-frenate wing coupling (ARTHRO: Insecta) Lepidoptera,wing coupling where the jugum is folded under the forewings and holds the frenular bristles.jugular a. [L. jugulum, collar bone, throat] Of or pertaining tothe throat.jugular sclerites see cervical scleritejugulum n. [L. jugulum, collar bone, throat] (ARTHRO: Insecta)1. The median ventral plate <strong>of</strong> the head. see gula. 2. Thejugum <strong>of</strong> the wing.jugum n.; pl. -ga [L. jugum, yoke] 1. (BRACHIO) The medialconnection <strong>of</strong> the secondary shell between 2 primary lamellae<strong>of</strong> the spiralia. 2. (ARTHRO: Insecta) a. In Lepidoptera,a lobe-like process at the base <strong>of</strong> the fore wings,overlapping the hind wings. b. Two lateral lobes on thehead <strong>of</strong> certain Heteroptera, bordering the tylus. 3. (MOLL:Polyplacophora) Longitudinal ridge <strong>of</strong> some intermediatechiton valves that may be sharp or rounded.Julien's organ see coremajuliform a. [ Julus, generic name; L. forma, shape] (ARTHRO:Diplopoda) Having a cylindrical trunk and fused tergites,pleurites, and sternites as in the order Julida.junctional complex Specialized area <strong>of</strong> adhesive contact betweencells.junior homonym The more currently published <strong>of</strong> two or moreidentical names for the same or different taxa. see homonym,senior homonym.

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