Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Divasibranchia Minichev & Starobogatov, 1975
       Order Basommatophora Keferstein, 1865 see Suborder Basommatophora Keferstein, in Bronn, 1864
         Superfamily Lymnaeoidea Rafinesque, 1815
           Family Lymnaeidae Rafinesque, 1815
             Genus Erinna Adams & Adams, 1855
               1 Subgenus Omia Annandale & Prashad, 1919, nom. illeg.
               2 Subgenus Lantzia Jousseaume, 1872