An Illustrated and Cross-Referenced Glossary of
Malacological and Conchological Terms

by Paul S. Mikkelsen

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Term Definition

AURICLE   An anterior or posterior projection along the hinge line of a bivalve shell, commonly separated from body of shell by a notch or sinus; = HINGE EAR. See illustration: Composite Bivalve. See also: ALATE; BIALATE; SUBMARGIN.

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