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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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138Maggenti and Gardnerbrachelytra n.pl. [Gr. brachys, short; elytron, sheath] (AR-THRO: Insecta) Having shortened wing covers or elytra.brachelytrous a.brachia n.pl. [L. brachium, arm] 1. Processes like arms. 2.(ARTHRO: Insecta) a. Paired, unfused processes resemblingarms surrounding the aedeagus; clasper; paramere. b. Atracheal or blood gill. 3. (BRACHIO) see brachidium.brachial a. [L. brachium, arm] 1. Pertaining to an arm-likeprocess or appendage. 2. (ARTHRO: Insecta) Pertaining tothe fore wing.brachial canal (CNID: Scyphozoa) A canal in the oral arm <strong>of</strong>medusae.brachial basket (ARTHRO: Insecta) In Odonata, a barrel-likechamber in the anterior two-thirds <strong>of</strong> the rectum that functionsby the intake and expulsion <strong>of</strong> water; rectal gills.brachial valve (BRACHIO) A valve containing any skeletal supportfor the lophophore, generally smaller than the pediclevalve; dorsal valve.brachidium n.; pl. brachidia [L. dim. brachium, arm](BRACHIO) The internal skeleton or brachial support for thelophophore, consisting <strong>of</strong> a calcareous loop or spire.brachiolaria n.; pl. -lariae [L. dim. brachium, arm] (ECHINOD:Asteroidea) The free-swimming, ciliated larva that developsfrom the bipinnaria and is characterized by three additionalarms extending from the anterior part <strong>of</strong> the ventral surface,anterior to the preoral loop.brachiole n. [L. dim. brachium, arm] (ECHINOD: Crinoidea) Theslender arm or arms extending from the ambulacralgroove.brachiophores n. [L. brachium, arm; Gr. phorein, to bear](BRACHIO) Blades <strong>of</strong> the secondary shell projecting fromthe side <strong>of</strong> the notothyrium and forming anteromedianboundaries <strong>of</strong> sockets in some brachial valves.Brachiopoda, brachiopods n.; n.pl. [Gr. brachys, short;pous, foot] A phylum <strong>of</strong> relatively small, solitary coelomatesenclosed within a bivalved shell and usually attachedto the substrate by a pedicle; common called lamp shells;brachiopods have one <strong>of</strong> the longest and best recorded fos-

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