The Atlantic surf clam (Spisula solidissima), also called the bar clam, hen clam, skimmer or simply sea clam, is a very large, edible, saltwater clam or marine bivalve mollusk in the family Mactridae. It is one of the most commonly found species of bivalves in the western Atlantic Ocean. Able to reach sizes between 7.9 and 8.9 inches (20 and 23 cm) in length, Atlantic surf clams are much larger than Spisula solida, which also resides in the eastern Atlantic coastal waters. Atlantic surf clams reproduce in late summer, when the water temperatures peak.
