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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> 803transverse ridges provided on the fused 2nd valvulae. b. InDiptera, the anterior serrated plate <strong>of</strong> the spiracular apparatus<strong>of</strong> Mansoniini larvae.saw bristles (ARTHRO: Crustacea) A heavy row <strong>of</strong> setae betweenthe molar and incisor process on the gnathal lobe <strong>of</strong>the mandible.saxicavous a. [L. saxum, rock; cavus, hollow] Said <strong>of</strong> rockboringmollusks.saxicolous a. [L. saxum, rock; colere, to inhabit] Living amongrocky or stony areas.scabellum n. [L. scabellum, footstool] (ARTHRO: Insecta) InDiptera, the distal basal portion <strong>of</strong> the halteres.scabrous a. [L. scaber, rough] Rough; rugged; with little rigidpoints or minute irregularities.scalariform, scalaroid a. [L. scalaris, ladder; forma, shape]Ladder-like; having transverse bars and spaces like a ladder.scales n.pl. [OF. escale, husk] 1. A small, more or less flattened,plate-like exterior covering. 2. (ARTHRO) a. In Chelicerata,flattened, modified setae <strong>of</strong> Arachnida. b. In Crustacea,small calcareous plate on the peduncle <strong>of</strong>lepadomorph barnacles. see scaphocerite. c. In Insecta,flat unicellular outgrowths <strong>of</strong> the body-wall; highly modifiedclothing hairs <strong>of</strong> all Lepidoptera, many Collembola, in someThysanura, Coleoptera, Diptera and Hymenoptera. 3.(MOLL) a. In Bivalvia, localized projections <strong>of</strong> the outershell; usually on a rib. b. In Polyplacophora, small calcareousbodies decorating the dorsal side <strong>of</strong> the girdle, sometimesclosely set, overlapping and <strong>of</strong> various shapes, beingsmooth or with minute striations. 4. (NEMATA: Sacernentea)Thickened, retrorse modifications <strong>of</strong> the body annuli.scalids n.pl. [Gr. skalidon, hoe] 1. (KINOR) Circlets and longitudinalrows <strong>of</strong> spines on the protrusible cone-shaped headand neck. 2. (LORI) In Nanaloricus mysticus, many recurvedspines on the cone-shaped anterior end (introvert)on its lateral surface. 3. (PRIAP) Longitudinal riblike, conicalprojections arranged in circles and longitudinal rows on thebarrel-shaped anterior proboscis region (introvert).

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