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1 药材性状 贝壳近圆形,扁平壳质坚厚,壳长度略大于高度,壳较小。直径30mm～62.5mm,高28mm～57.2mm,壳顶尖,向前弯曲,小月面极凹呈心脏形,贝壳前缘凹入,后端略呈截形,腹缘圆,贝壳表面略突起,平滑白色无放射肋。同心生长轮脉极明显,轮脉间形成浅的沟纹,贝壳内面白色或淡黄色,微具光泽较合部宽。右壳有主齿3个,前两端的较小呈八字形排列与缘垂直,后端的一个较长,斜向后方,末端分裂。左壳主齿3个,前主齿为一
1 Medicinal properties The shells are nearly round, and the flat shells are thick. The length of the shell is slightly larger than the height and the shell is smaller. Diameter 30mm ~ 62.5mm, height 28mm ~ 57.2mm, shell tip, curved forward, small moon surface is very concave-shaped heart-shaped, shell front concave, the back is slightly truncated, ventral edge, shell surface slightly protruding, Smooth white without radiation ribs. The concentric growth of the trochanter is extremely obvious, with shallow grooves formed between the veins, and the inside of the shell is white or light yellow, and the micro-gloss is wider than the joint. There are 3 main teeth in the right shell, and the smaller and straighter front and rear ends of the shell are arranged perpendicularly to the edge. The back end is longer, obliquely rearward, and the ends are split. There are 3 left main teeth and 1 main tooth