Ceratostoma, common name the "hornmouth" snails, is a genus of medium to large predatory sea snails, marine gastropod mollusks in the family Muricidae, the rock snails. [1]
This genus should not be confused with the nudibranch genus Ceratosoma, meaning "thorn body". Ceratostoma means "thorn mouth" because of the thorn-like projection on the edge of the aperture, used as a tool in predation to prop open the shells of bivalves and barnacles.
Species within the genus Ceratostoma include:
Species brought into synonymy: