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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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398Maggenti and Gardnergigeriate a. [L. gigerium, gizzard] (ANN) Having one or moregizzards in the digestive system.gill n. [ME. gile, gill] 1. An external respiratory organ <strong>of</strong> variousaquatic invertebrates. 2. (ARTHRO) Brachia or plastron. 3.(ECHINOD: Echinoidea) The plastron. 4. (MOLL) Thectenidium.gill bailer see scaphognathitegill bar (MOLL: Bivalvia) Dorsoventral rodlike thickenings <strong>of</strong> agill lamellae.gill book see book gillgill chamber see branchial chambergill filaments 1. Finger-like subdivisions <strong>of</strong> gills <strong>of</strong> various invertebrates.2. (ANN) Finger-like extensions <strong>of</strong> the bodywall that function in respiration.gill lamellae (MOLL: Bivalvia) Thin plates making up a gill.gill plume (MOLL: Gastropoda) Gill or ctenidium.gill retractor (MOLL: Bivalvia) When present, a muscle attachingone <strong>of</strong> the gills to the shell.gill separator see epipoditegill tuft A group <strong>of</strong> mainly lateral, filamentous gills.Gilson's glands (ARTHRO: Insecta) In Trichoptera, thoracicglands homologized to coxal glands or nephridia.ginglymus n. [Gr. ginglymos, hinge-joint] (ARTHRO: Insecta)In dicondylic jaws, a cavity or groove <strong>of</strong> the mandible thathinges on a convex process <strong>of</strong> the clypeus forming the anteriorjoint.gin-traps (ARTHRO: Insecta) In certain coleopteran larvae, localsclerotization <strong>of</strong> opposable edges <strong>of</strong> adjacent abdominalsegments, supposed organs <strong>of</strong> defense against arthropodpredators.girdle n. [A.S. gyrdel, a girdle] (MOLL: Polyplacophora) Flexiblemuscular integument, plain or leathery, or variously ornamented,holding the chiton valves in place; perinotum; girdle.gizzard n. [OF. gezier, gizzard] 1. A grinding chamber <strong>of</strong> variousinvertebrates. 2. (ANN: Oligochaeta) A muscular area <strong>of</strong>

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