正品蛤壳药材为帘蛤科动物文蛤或青蛤的贝壳。本人发现市场上时有伪品混淆蛤壳出售,常见的有西施舌、蛤蜊、蛤仔、杂色蛤仔的贝壳,偶见有日本镜蛤、河蚬等。兹将以上性状鉴别分述如下: Authentic oyster shells are shells of the scorpion clams or clams. I found that counterfeit shells were sold on the market at times. Common shells such as shih-tung, oysters, oysters, and variegated oyster shells were occasionally found. Occasionally, there were Japanese mirror oysters and river oysters. The above traits are identified and described as follows: