Periwinkles are small, marine gastropod mollusks that are commonly found on rocky shorelines. They are also known by other names such as sea snails, whelks, winkles, buckies, and escargots de mer. In some regions, they are also referred to as "conchs" or "whelks." These synonyms are often used interchangeably depending on the location and culture. Despite the varying names, periwinkles are a popular dish in many coastal communities and are enjoyed for their distinct flavor and texture. They are usually boiled or steamed and served with butter or other sauces. Whether referred to as periwinkles, whelks, or any other synonym, these tiny mollusks are a delicacy worth trying.