The surf clam (Spisula solida) is a medium-sized marine clam, or bivalve mollusc, found in the Eastern Atlantic from Iceland and northern Norway to Portugal and Spain. Up to long, it is like many clams a sediment-burrowing filter feeder. This species of clam is found in sandy bottom in the sublittoral zone. It is commonly found in the North Sea, Baltic Sea and the Irish Sea. References Mactridae Molluscs described in 1758 Taxa named by Carl Linnaeus