The term 'kind of clam' refers to three different types of clams. The first is a STEAMER, which is a type of clam that is usually steamed and served with butter or other sauces. The second is a CHERRYSTONE, which is a larger variety of clam that is often used in chowders and other dishes. Finally, the third is a RAZOR clam, which is a long, thin clam that is usually harvested from sandy beaches. All three of these clams are popular seafood items and can be found in many restaurants and grocery stores.