pecten pubis

例句：

1. 1. The shell of the sea creature is a fascinating feature.
   这种海洋生物的壳是一个令人着迷的特征。
2. 2. The shellfish industry is one of the most important industries in the world.
   贝类产业是世界上最重要的产业之一。
3. 3. The shells are made from calcium carbonate, which is found in many other marine organisms.
   这些壳是由碳酸钙制成的，这种物质在其他许多海洋生物体内也能找到。