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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> 149pillae; bursa. 3. (ARTHRO: Insecta) A female copulatorypouch developed from the tubular vagina in the genitalchamber for reception <strong>of</strong> the male aedeagus. see genitalchamber. 4. (MOLL) A copulatory pouch or sac for receivingsperm that will be stored for only a brief period; copulatorybursa. see seminal receptacle. 5. (PLATY: Turbellaria)In planarians, a blind pouch that holds the secretionsfrom the penis and adenodactyl gland (muscular organ),which then activates the sperm.bursal slits (ECHINOD: Crinoidea) Genital openings <strong>of</strong> thebursa <strong>of</strong> Ophiurida, through which water circulates for respiration,and ripe sex cells pass for fertilization or are retainedas brood until rupture <strong>of</strong> the aboral disk. see ophiopluteus.bursa seminalis see seminal bursabursicon n. [L. dim. bursa, purse] (ARTHRO: Insecta) A hormoneassociated with hardening and darkening <strong>of</strong> the cuticlefollowing ecdysis.bursiform a. [L. bursa, purse; forma, shape] Formed like apurse.buschelformigen Korper see racemose glandsbutt see hampebuttress n. [OF. bouterez, to thrust] 1. (ARTHRO: Insecta) InCulicidae pupae, a sclerotized, thickened basolateral part <strong>of</strong>the paddle; external buttress; external thickening; nervure.2. (MOLL: Bivalvia) A radiating ridge on the interior thatreinforces the hinge process.byssaceous a. [Gr. byssos, fine flax] Composed <strong>of</strong> fine filaments.byssal foramen (MOLL: Bivalvia) An opening in the right valvefor passage <strong>of</strong> byssus in Anomiidae oysters.byssal gape (MOLL: Bivalvia) An opening between the valvemargins for the passage <strong>of</strong> the byssus.byssal gland (MOLL: Bivalvia) A viscid secreting gland producingthe byssal threads that anchors the organism to rocksand solid objects; also called byssal pit. see byssus.byssal notch (MOLL: Bivalvia) A small opening or notch located

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