Zhijiang oyster is a kind of shellfish with great economic value. Later, the adductor muscle (meat column) is extremely developed, accounting for about 1/4 of the body length and 1/5 of the body weight. It is delicious and nutritious. In addition to being eaten fresh, it can be processed and dried into the famous "scallops" or canned. Shells can be used as raw materials for shell carving.