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 Archaeopulmonata Morton, 1955 see Suborder Archaepulmonata
       Order Basommatophora Keferstein, 1865 see Suborder Basommatophora Keferstein, in Bronn, 1864
       3 Order Stylommatophora Schmidt, 1855 see Infraorder Stylommatophora Schmidt, 1855