Bistolida ursellus
Bouchet & Rocroi (2005): Domain: Eukaryota • Regnum: Animalia • Subregnum: Eumetazoa • Cladus: Bilateria • Superphylum: Protostomia • Phylum: Mollusca • Classis: Gastropoda • Cladus: Caenogastropoda • Cladus: Hypsogastropoda • Cladus: Littorinimorpha • Familia: Cypraeidae • Genus: Bistolida • Species: Bistolida ursellus (Gmelin, 1791)