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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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<strong>Online</strong> <strong>Dictionary</strong> <strong>of</strong> <strong>Invertebrate</strong> <strong>Zoology</strong> 843spiculiferous a. [L. spicula, small spike; fero, bear] Providedwith spicules.spiculiform a. [L. spicula, small spike; forma, shape] Spiculeshaped.spiculose a. [L. spicula, small spike] Bearing spicules.spiculum n.; pl. spicula [L. spicula, small spike] Spicularstructures, as the spines <strong>of</strong> echinoderms and dart <strong>of</strong> certainsnails.spigots n.pl. [L. spica, spike] (ARTHRO: Chelicerata) In Arachnida,conical spinning tubes on the spinnerets.spiked-tail stage (NEMATA: Secernentea) In Heteroderidae,the pointed tail <strong>of</strong> the second stage larval cuticle retainedduring initial expansion <strong>of</strong> the vermiform body.spina n.; pl. spinae [L. spina, thorn] 1. A spine. 2. (ARTHRO:Insecta) a. The medium apodemal process <strong>of</strong> the spinasternum.b. The medium apodeme.spinasternum n. [L. spina, thorn; sternum, breast plate] (AR-THRO: Insecta) An instersegmental sclerite <strong>of</strong> the thoracicventer bearing a spina, associated with or united with thesternal sclerite immediately anterior to it; the intersternite.spinate a. [L. spina, thorn] Bearing spines; spiniform.spination n. [L. spina, thorn] The development or arrangement<strong>of</strong> spines.spindle n. [A.S. spinnal, to spin] 1. Fusiform; tapering graduallyat both ends. 2. (PORIF) A straight monaxial spicule.spindle cell see plasmatocytesspine n. [L. spina, thorn] A pointed process or outgrowth;thorn-like.spine base (BRYO) A collar-like skeletal inflation at the base <strong>of</strong>a spine.spine hairs (ARTHRO: Insecta) Poisonous weapons <strong>of</strong> manycaterpillars, usually <strong>of</strong> multicellular origin and provided withpointed tips, that upon penetration into human skin arebroken, causing irritation; primitive setalike normal hairs.spiniform a. [L. spina, thorn] Resembling a spine in shape.spiniger n. [L. spina, thorn; gerere, to carry] (ANN: Poly-

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