Cylichna cylindracea

Bouchet & Rocroi (2005): Domain: Eukaryota • Regnum: Animalia • Subregnum: Eumetazoa • Cladus: Bilateria • Superphylum: Protostomia • Phylum: Mollusca • Classis: Gastropoda • Cladus: Heterobranchia • Cladus: Opisthobranchia • Ordo: Cephalaspidea • Familia: Cylichnidae • Genus: Cylichna • Species: Cylichna cylindracea (Pennant, 1777)