Arca zebra

Arca zebra, or the turkey wing ark clam, is a bivalve mollusc in the family Arcidae, the ark clams. This species is found along the Atlantic coast of North America, ranging from North Carolina to the West Indies and Bermuda. It attaches itself to rocks or other hard substrates in shallow water with byssus threads. The shell of Arca zebra is boldly...
Found on http://en.wikipedia.org/wiki/Arca_zebra
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