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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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106Maggenti and Gardneroxenic, polyxenic, trixenic.axial a. [L. axis, axle] Of or pertaining to an axis; relative tothe central axis <strong>of</strong> a cylindrical body or organ.axial cells (MESO: Rhombozoa) Central cells, comprised <strong>of</strong> anucleus and germinal cells (axoblasts).axial construction (PORIF) A type <strong>of</strong> skeletal organization withcertain components condensed to form a dense central regionor axis.axial filament 1. (ARTHRO: Insecta) see axoneme. 2. (PORIF) Aprotein core around which siliceous spicules are organized.axial gland (ECHINOD) A dark elongated mass <strong>of</strong> spongy tissueextending along the length <strong>of</strong> the stone canal, forming part<strong>of</strong> the hemal system; sometimes called axial organ orgenital stolon.axial gradient Gradation in metabolic rate along the threemain body axes, anterior-posterior, dorsoventral and median-lateral.axial organ see axial glandaxial stylet, axial spear see stomatostyle, odontostyleaxil n. [L. axilla, armpit] (ECHINOD: Asteroidea) The angleformed by junction <strong>of</strong> rays or straight-sided arms with nointerbrachial arcs.axil-arm (ECHINOD: Crinoidea) A main-axil arm and itsbranches, exclusive <strong>of</strong> terminal branchlets (omega-ramule).axilla n.; pl. axillae [L. axilla, armpit] (ARTHRO: Insecta) InHymenoptera, a triangular or rounded sclerite on each side<strong>of</strong> the scutellum.axillaries see pteraliaaxillaris n. [L. axillaris, <strong>of</strong> an axil] (ARTHRO: Insecta) The secondand third anal wing veins.axillary a.; pl. -ies [L. axilla, armpit] 1. (ARTHRO: Insecta)Pertaining to the axilla. 2. (ECHINOD: Asteroidea) In an axil,applied to a single ossicle. 3. (ECHINOD: Crinoidea) A brachialsupporting 2 arm branches.axillary cell (ARTHRO: Insecta) A cell in the anal area <strong>of</strong> a

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