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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> 855sterinx n. [Gr. sterinx, support] (ARTHRO: Crustacea) In Ostracoda,one <strong>of</strong> a pair <strong>of</strong> connecting pieces lateral to the tropisin the male copulatory apparatus.sterna pl. <strong>of</strong> sternumsternacosta n. [Gr. sternon, chest; L. costa, rib] (ARTHRO: Insecta)An internal transverse ridge connecting the bases <strong>of</strong>the sternal apophyses.sternacostal suture (ARTHRO: Insecta) The external suture <strong>of</strong>the thoracic sternum through the apophyseal pits separatingthe basisternum from the sternellum.sternal a. [Gr. sternon, chest] (ARTHRO: Insecta) Pertaining tothe sternum.sternal apophyseal pits (ARTHRO: Insecta) In higher insects,an external indentation marking the point <strong>of</strong> origin <strong>of</strong> thesternal apophysis.sternal apophysis (ARTHRO: Insecta) One <strong>of</strong> a pair <strong>of</strong> lateralapodemal arms <strong>of</strong> the eusternum marked by pits joined bya sulcus, thus dividing the eusternum into a basisternumand a sternellum; in higher insects they arise in the midlineand separate internally, forming the Y-shaped furca. seepleural apophysis.sternal canal (ARTHRO: Crustacea) In Decapoda, an internalskeletal structure <strong>of</strong> some crabs formed by the meeting <strong>of</strong>the sternal apodemes from opposite sides <strong>of</strong> the bodyabove the nerve cord; sternum canal.sternal coxal process (ARTHRO: Insecta) 1. A projection <strong>of</strong>the sternum serving for the ventral point <strong>of</strong> articulationwith the coxa. 2. In Culicidae, a winglike expansion <strong>of</strong> themeso- and metabasisterna; ventral process.sternal laterale (ARTHRO: Insecta) A plate on each side <strong>of</strong> thesternum or presternum in some lower insects.sternal plastron see sternumsternal process (ARTHRO: Crustacea) In Mysidacea, a projectionarising from the midsection <strong>of</strong> the sternite.sternal spatula see breastbonesternal taenidium (ARTHRO: Chelicerata) In Opilioacariformes,a surface canal in the sternal region <strong>of</strong> the podosoma ex-

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