Arca imbricata

Arca imbricata, or the mossy ark clam, is a clam in the family Arcidae. It can be found along the Atlantic coast of North America, ranging from North Carolina to the West Indies, Brazil, and Bermuda. Arca imbricata grows to about 2 ins (5 cm) in length. The valves have a roughly rectangular shape with a rounded anterior end and a slightly pointed ...
Found on http://en.wikipedia.org/wiki/Arca_imbricata
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