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 Stylommatophora Schmidt, 1855 see Infraorder Stylommatophora Schmidt, 1855
         Superfamily Achatinacea see Superfamily Achatinoidea Swainson, 1840
         Superfamily Achatinellacea see Superfamily Achatinelloidea Gulick, 1873
         Superfamily Athoracophoracea see Superfamily Athoracophoroidea Fischer, 1883 (1860)
         Superfamily Clausiliacea see Superfamily Clausilioidea Gray, 1855
         Superfamily Cochlicopacea see Superfamily Cochlicopoidea Pilsbry, 1900 (1879)
         Superfamily Helicacea see Superfamily Helicoidea Rafinesque, 1815
         Superfamily Oleacinacea see Superfamily Oleacinoidea H. Adams & A. Adams, 1855
         Superfamily Orthalicacea see Superfamily Orthalicoidea Martens, 1860