The ocean quahog is a slow growing clam that is found in cool waters of the North Atlantic. Some may live as long as 200 years. The species is also known as a mahogany clam, mahogany quahog, black quahog, and black clam.

The meat is firm and pinkish with a somewhat stronger taste than inshore clams. Ocean quahogs are generally minced, chopped or cut into strips before they are suitable for the table. They are used in clam recipes such as chowders, linguine and other dishes.