Classification
Biota [regio]Animalia [regnum]
Mollusca [phylum]
Gastropoda [classis]
Littorinimorpha [ordo]
Cassidae [familia]
Cassis [genus]
Genus Cassis contains the following taxa:
Cassis cornuta (Linnaeus, 1758) [species]
Cassis tuberosa (Linnaeus, 1758) [species]