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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> 795rostel see rostellumrostelliform a. [L. rostellum, small beak; forma, shape]Shaped like a rostellum.rostellum, rostel n. [L. rostellum, small beak] 1. A small beakor rostrum. 2. (ARTHRO: Insecta) The tubular piercing andsucking mouth parts. 3. (BRACHIO) Low projection betweenanterior muscle scars to which internal oblique muscles areattached. 4. (PLATY: Cestoda) A rounded prominence on theanterior end <strong>of</strong> the scolex, <strong>of</strong>ten furnished with retractilespines or hooks; sometimes referred to as an aclid organ.5. (PLATY: Trematoda) An anterior holdfast; rhynchus.rostellar, rostellate a.rostrad adv. [L. rostrum, beak] Toward the anterior end;cephalad; toward the rostrum when anterior.rostral filaments see rostralisrostral incisure (ARTHRO: Crustacea) In Ostracods, a gap betweenthe rostrum in the anterior margin <strong>of</strong> the valve allowingfor protrusion <strong>of</strong> the antenna (second antenna);rostral notch.rostralis n. [L. rostrum, beak] (ARTHRO: Insecta) In Coccoidea,the modified mandibles and maxillae that pass through therostrum into the host plant.rostral latus (ARTHRO: Crustacea) In Lepadomorph branacles,a plate on each side <strong>of</strong> the rostrum or below the scutum.see rostrolateral.rostral notch see rostral incisurerostral plate (ARTHRO: Crustacea) In malacostracan Phyllocarida,the anteriorly projecting, movably articulated, medianextension <strong>of</strong> the carapace.rostral tooth (ARTHRO: Crustacea) On a Decapoda carapace, atooth on the rostrum, may be single or multiple, with theupper, lower and lateral teeth distinguished.rostrate a. [L. rostrum, beak] Having a rostrum or beak-likeprocess.rostriform a. [L. rostrum, beak, forma, shape] Having theform <strong>of</strong> a beak.rostrolateral (ARTHRO: Crustacea) In balanomorph barnacles,

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