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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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68Maggenti and Gardneranterior keel (MOLL) The high point <strong>of</strong> the whorl next to thesuture at the lower edge <strong>of</strong> the shell nearest to the anteriorend.anterior lateral tooth (MOLL: Bivalvia) A lateral tooth in front<strong>of</strong> the beak.anterior promontory (ARTHRO: Insecta) In Diptera, the medianarea <strong>of</strong> the mesonotum, at the anterior end <strong>of</strong> theacrostichal area.anterior setae see ventral setaeanterior stigmatal tubercle (ARTHRO: Insecta) Prominence onthe thoracic and abdominal segments <strong>of</strong> caterpillars.anterior tentorial arms (ARTHRO: Insecta) An apodeme arisingfrom the anterior tentorial pits, meeting the posteriortentorial arm at a visible fusion point; sometimes bearing asmall dorsal or ventral tentorial arm.anterior tentorial pits (ARTHRO: Insecta) External depressionsin the epistomal suture marking the base <strong>of</strong> the anteriortentorial arm(s).anterior tubercle (ARTHRO: Crustacea) A swelling or smallprojection in the anterior region <strong>of</strong> the carapace <strong>of</strong> archaeostracans;polygenetic, sometimes including the optictubercle.anterobiprostatic a. [L. antero, anterior; bis, twice; Gr. prohistanai,to set before] (ANN: Oligochaeta) Pertaining to themale terminalia <strong>of</strong> parthenogenetic earthworm morphs inwhich the posterior prostates <strong>of</strong> an acanthodrilin set areabsent.anterodorsal a. [L. antero, anterior; dorsum, back] Towardthe front and the top or upper side.anterolateral region (ARTHRO: Crustacea) The lateral part <strong>of</strong>the carapace bordering the subhepatic or hepatic regions.anteromesal a. [L. antero, anterior; mesos, middle] In thefront and along the midline <strong>of</strong> a body.anteroposterior axis The longitudinal axis, from head to tail.anteroventral a. [L. antero, anterior; venter, belly] In thefront on the lower side.

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