TrochiaTrochia is a genus of sea snails, marine gastropod mollusks in the family Muricidae, the murex snails or rock snails.DescriptionThe whorls are separated by a deep groove. The inner lip is thickened, convex and striated. The aperture shows a very short siphonal canal.SpeciesSpecies within the genus Trochia include: ''Trochia cingulata''