Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Divasibranchia Minichev & Starobogatov, 1975
       Order Stylommatophora Schmidt, 1855 see Infraorder Stylommatophora Schmidt, 1855
         (Helicid Sigmurethra)
           Superfamily Arionoidea Gray, 1840
             Family Arionidae Gray, 1840
               1 Subfamily Arioninae Gray, 1840 see Family Arionidae Gray, 1840
               2 Subfamily Anadeninae Pilsbry, 1948 see Family Anadenidae Pilsbry, 1948
               3 Subfamily Ariolimacinae Pilsbry & Vanatta, 1898
               4 Subfamily Binneyinae Cockerell, 1891 see Family Binneyidae Cockerell, 1891
               5 Subfamily Ariopeltinae Sirgel, 1985