西施舌,俗称海蚌,属瓣鳃纲,蛤蜊科,学名MactraantiquataSpengler。栖息于浅海沙滩内,分布于太平洋西部的中国、日本、越南以及印度半岛沿海。在中国以福建闽江口一带产量为最多。以肉质细嫩,味道甘美著称,西施舌壳大,薄脆,体呈圆三角形长6～7cm。壳顶前方略凹,后方较为突出,腹? Xishi tongue, commonly known as the sea slug, is a genus of the genus Valerianidae, and is known as Mactraantiquata Spengler. Perched on a shallow sandy beach, it is located in the western Pacific, China, Japan, Vietnam, and the Indian Peninsula. In China, production is the largest in the vicinity of Minjiang Estuary in Fujian. The meat is delicate, sweet and delicious, and the Xishi tongue is large, thin and brittle, and the body has a round triangle of 6-7 cm in length. The top of the shell is slightly concave in front and the rear is more prominent.