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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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558Maggenti and Gardnerzoa) Secondary mesentaries between the primary cycle.metacoel n. [Gr. meta, after; koilos, hollow] 1. The body cavity<strong>of</strong> the third division <strong>of</strong> the deuterostome body. 2.(BRYO) Believed to be the main body cavity.metacorporal valve (NEMATA) An expanded, strongly cuticularizedportion <strong>of</strong> the triradiate lumen at the center <strong>of</strong> themetacorpus that functions as a pump during feeding.metacorpus n. [Gr. meta, after; L. corpus, body] (NEMATA)The median esophageal bulb; the middle bulb; the medianbulb.metacoxal plate (ARTHRO: Insecta) In Coccinellidae, a portion<strong>of</strong> the first ventral segment included above the ventrallines, visible on the metathorax.metacyclic a. [Gr. meta, after; kyklos, circle] Pertaining to astage in the life cycle <strong>of</strong> a parasite that is infective to itsdefinitive host.metacyst n. [Gr. meta, after; kystis, bladder] A cystic stage <strong>of</strong>a parasite in a host.metaepisternum see metepisternummetaerucism n. [Gr. meta, after; L. eruca, caterpillar] (AR-THRO: Insecta) Poisoning by larval setae on cocoons, etc.see lepidopterism.metafemale n. [Gr. meta, after; L. femella, little woman] (AR-THRO: Insecta) In Diptera, an individual with 3 X-chromosomesand 2 sets <strong>of</strong> autosomes; found in Drosophila.metagastric lobe or area (ARTHRO: Crustacea) In Decapoda,the posterior division <strong>of</strong> the gastric region <strong>of</strong> the carapace;sometimes ill-defined.metagenesis n. [Gr. meta, after; genesis, beginning] Alternation<strong>of</strong> sexual and asexual reproduction in the life cycle <strong>of</strong>certain animals; alternation <strong>of</strong> generations. see heterogenesis.metagnath n. [Gr. meta, change <strong>of</strong>; gnathos, jaw] (ARTHRO:Insecta) Those insects with biting mandibles when youngand sucking mouth parts as adults. see menognath, Menorhyncha.metagonia n. [Gr. meta, after; gonia, angle] (ARTHRO: In-

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