demibranchs

demibranchs
n. pl. [Gr. demi, half; branchia, gills]
(MOLLUSCA: Bivalvia)
A pair of ciliated gill filaments composed of two flat lamellae (inner demibranch and outer demibranch) in which there are blood vessels that facilitate respiration and mucociliary feeding.

Online Dictionary of Invertebrate Zoology. . 2005.

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  • bivalve — bivalvular /buy val vyeuh leuhr/, adj. /buy valv /, n. 1. Also called lamellibranch. Zool. any mollusk, as the oyster, clam, scallop, or mussel, of the class Bivalvia, having two shells hinged together, a soft body, and lamellate gills. adj. 2.… …   Universalium

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