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 Sagdoidea Pilsbry, 1895 [monotypic]
             Family Sagdidae Pilsbry, 1895
               Subfamily Aquibaninae Vaught, 1989, orth. inval. see Subfamily Aquebaninae Baker, 1940
                 1 Genus Aquebana Pilsbry, 1926
                 2 Genus Suavitas Pilsbry, 1926
                 3 Genus Yunquea Baker, 1940