Sea mussels are a specialty of Changle Hunan in Fujian Province, the main production area is in the waters of Changle Hunan Town, because it has been sold on behalf of Zhanggang traders, also known as Zhanggang sea mussels, mollusks.

The shell is slightly triangular in shape, usually 7 to 9 centimeters long, with the top of the shell slightly in front of the center, the ventral margin rounded, the height of the body is 4/5 of the body length, and the width of the body is 1/2 of the body length. the shell is thick, the shell surface is smooth and clean, and the veins of the growth wheel are obvious, with the top of the shell being lilac, and the rest of the shell being beige or grayish-white.

Widely distributed in the Indo-Pacific sea shallows. It is a valuable shellfish with high economic value because of its large size, crispy meat and sweet flavor.

Flower armor, also known as clams, mollusks, about 3 centimeters long, shell ovoid, light brown, purple edge. Living in the shallow seabed.