The scallop, also known as the scallop, belongs to the family of scallop in the order of pearl oysters. The shell is fan-shaped, with two shells that are low and flat, and the shell height is slightly greater than the shell length; Straight dorsal margin and round ventral margin; At the top of the shell, there are shell ears on the front and back of the top, with the front ear being larger; There is a pedis hole under the right anterior ear; The two shells are nearly equal in size, but the right shell is flatter and the left shell is more convex; There are spiny protrusions on the ribs, and the shell color changes, usually light brown; The color of the inner surface of the shell is light, mostly pink, with the same rib pattern as the shell surface; The hinge is straight, toothless, and the inner ligament is located in the groove of the three fish ligament. Due to its bright, thin, and hard shell, with multiple radiating ribs, it resembles a sunflower fan in appearance, and there is a depression on the ventral surface of the right shell in front of the ear.