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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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918Maggenti and Gardnerconical shell, without a highly acute spire and rather flat atthe base.trochlea n. [Gr. trochilia, pulley] A pulley-like structure, short,circular, compressed and contracted in the middle <strong>of</strong> thecircumference.trocholophous a. [Gr. trochos, wheel; lophos, crest](BRACHIO) A lophophore with a simple disk around themouth, bearing usually a single row <strong>of</strong> unpaired filamentaryappendages, rarely a double row <strong>of</strong> paired appendages.trochophore n. [Gr. trochos, wheel; phora, bearing] An invertebratefree-swimming larva found in many groups,marine turbellarians, nemerteans, brachiopods, phoronids,bryozoans, mollusks, sipunculids, and annelids, commonlypear-shaped and provided with a prominent equatorialband <strong>of</strong> cilia and sometimes one or two accessory ciliarycirclets.trochosphere see trochophoretrochus n.; pl. trochi [Gr. trochos, wheel] (ROTIF) The inner,anterior circlet <strong>of</strong> coronal cilia along the margin <strong>of</strong> the apicalband; cingulum.troglobiont n. [Gr. trogle, hole; bios, life] A cave dwelling organism;troglobite.troglodytic a. [Gr. trogle, hole; dyein, to enter] Living undergroundonly.troglophile n. [Gr. trogle, hole; philein, to love] 1. Cave-loving.2. (ANN: Oligochaeta) Many species <strong>of</strong> earthworms arereferred to in this manner, however, they are not obligatorytroglophiles.trogloxene n. [Gr. trogle, hole; xenos, guest] 1. A cave guest.2. Sometimes used to characterize organisms that do notcomplete all <strong>of</strong> their life cycle in caves.tropeic a. [Gr. tropis, keel] Resembling a keel; cariniform.trophallaxis n. [Gr. trophe, food; allaxis, exchange] (ARTHRO:Insecta) The mutual or unilateral exchange <strong>of</strong> alimentarycanal liquid, from the mouth or anus, among colony members<strong>of</strong> social insects or guests; trophobiosis. trophallactica.

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