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On this shell, the hinge ligament is visible from the outside as a leathery bulge. On the inside, three cardinal teeth are visible, and on either side of those, there are two rows of lateral teeth. Corbiculids, also called Asian clams, are invasive and not currently found in Vermont waters, although they have been found just two locks below Lake Champlain. We have seen them in samples from Puerto Rico and The Bronx NY. .

Images of the hinge ligament, and the teeth.

For more information on preventing exotic introductions, visit VT DEC's Aquatic Invasive Species site