Thick Trough Shell

Spisula solida

The surf clam 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 5 centimetres (2.0 in) long, like many clams, the surf clam is a sediment-burrowing filter feeder.

Scientific name
Spisula solida
Family
Mactridae