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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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942Maggenti and Gardnerventral cirrus see neurocirrusventral comb (ARTHRO: Crustacea) In Cephalocarida, a row <strong>of</strong>setae or bristles on the posteroventral margin <strong>of</strong> the lastabdominal somite.ventral cup (ARTHRO: Crustacea) An element <strong>of</strong> the naupliuseye.ventral diaphragm (ARTHRO: Insecta) A horizontal septumabove the nerve cord separating the perineural sinus fromthe main perivisceral sinus.ventral frontal organ (ARTHRO: Crustacea) Paired sensorystructures associated with the nauplius eye.ventral gland see prothoracic glandventral groove (ARTHRO: Insecta) In Collembola, a cuticularchannel down the middle ventral line <strong>of</strong> the body from thelabium to the anterior part <strong>of</strong> the ventral tube; thought t<strong>of</strong>unction in osmoregulation.ventralia n. [L. venter, belly] (GNATHO) Paired sensory bristlesfound ventrally on the head <strong>of</strong> jaw worms.ventral membrane (ARTHRO: Insecta) In Diptera, skin-like tissueconnecting the tergites and the sternites along thesides <strong>of</strong> the abdomen.ventral muscles (ARTHRO: Insecta) Tergal and sternal longitudinalabdominal muscles running between the intersegmentalfolds or on the antecostae <strong>of</strong> successive sterna.ventral nerve cord The primary nerve cord <strong>of</strong> all invertebrates,except those <strong>of</strong> the Hemichordata and Chordataphyla.ventral pharyngeal gland see pharyngeal gland, ventralventral plate (ARTHRO: Insecta) 1. In embryology, a layer <strong>of</strong>columnar cells <strong>of</strong> the blastoderm on the ventral side <strong>of</strong> theegg. 2. In Diptera, the floor <strong>of</strong> the cibarium.ventral process see sternal coxal processventral prolegs (ARTHRO: Insecta) Prolegs occurring ventrallyon the abdominal segments <strong>of</strong> larvae, except the last segmentthat are called anal prolegs.ventral scale (ARTHRO: Insecta) In Diaspinae, the ventral part

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