Steamed clams is a seafood dish consisting of clams cooked by steaming. In the United States, steamed clams are usually made with small soft-shell clams (Mya arenaria) called steamers, and sometimes with other shellfish harvested and served along the East Coast and in New England. Hard shell clams, sometimes known as quahogs, can also be steamed. They are categorized by size— the smaller ones are called littlenecks, medium-sized ones topnecks, the larger ones cherrystones, and the largest are simply called quahogs.