Any of numerous marine gastropod mollusks, as of the families Acmaeidae and Patellidae, characteristically having a conical shell and adhering to rocks of tidal areas.

• 帽贝海生腹足类软体动物的一种，如腹足绵软体动物的帽贝科动物，特征为有锥状壳，在潮汐地区附着在石头上