QUAHOG (HARD) CLAM'S
The word "Clam" is an informal term used to refer to bivalve mollusks. Many edible clams are roughly oval-shaped or triangular; however, razor clams have an elongated parallel-sided shell, suggesting an old-fashioned straight razor. A clam's shell consists of two (usually equal) valves, which are connected by a hinge joint and a ligament that can be external or internal. The ligament provides tension to bring the valves apart, while one or two adductor muscles can contract to close the valves. Clams also have kidneys, a heart, a mouth, a stomach, a nervous system and an anus. Many have a siphon.