Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Mollusca Linnaeus, 1758 - molluscs
     Class Gastropoda Cuvier, 1795 - snails and slugs
       Subclass Pulmonata Cuvier, 1814 - land snails and slugs see Order Pulmonata Cuvier, 1814
         Order Systellommatophora Pilsbry, 1948 see Suborder Systellommatophora Pilsbry, 1948
           Genus Onchidella Gray, 1850
           Genus Onchidium Buchanan, 1800
           Genus Rhodope Kölliker, 1847