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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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370Maggenti and Gardnerlong joint with other annuli attached at angles.fracture n. [L. frangere, to break] (ARTHRO: Insecta) The sutureon the hemelytra <strong>of</strong> Heteroptera that separates thecuneus from the corium.fragile a. [L. frangere, to break] Easily broken; delicate; thinand brittle.fragmentation n. [L. frangere, to break] 1. Separated in partsor fragments. 2. Amitotic division. 3. (BRYO) Asexual production<strong>of</strong> a colony from a single or group <strong>of</strong> zooids fromanother colony.frame n. [A.S. framian, fashion, prepare] (ECHINOD) A structurecomposed <strong>of</strong> pentagonal rings <strong>of</strong> small ossicles on thedistal end <strong>of</strong> the tube feet.frass n. [Ger. fressen, to devour] Insect larval excrement usuallymixed with plant fragments.free a. [A.S. freo, freedom] Unrestrained; motile; not attached.free edge (ARTHRO: Crustacea) The line <strong>of</strong> contact <strong>of</strong> an ostracodshell between closed valves, except along hinge linemarking the distal limit <strong>of</strong> the contact margin.free-living Not attached or parasitic; capable <strong>of</strong> independentmovement and existence. see sessile.free margin (ARTHRO: Crustacea) All parts <strong>of</strong> an ostracod shellmargin, except hingement.free mesodermal cell see hemocytefree pupa see exarate pupafree-swimming Swimming about; not sessile.free-walled colony (BRYO: Stenolaemata) A colony coveredloosely by membranous exterior walls that are not attachedat oral apertures.free-wax cell (ARTHRO: Insecta) Cells found in the hemolymph<strong>of</strong> Aphididae and Coccoidea.frenate wing coupling (ARTHRO: Insecta) Lepidopterous wingcoupling with a well developed frenulum that engages witha catch or retinaculum on the underside <strong>of</strong> the fore wing,securing the wings together.frenulum n.; pl. -la [L. dim. frenum, bridle] 1. (ARTHRO: In-

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