Phylum Mollusca Linnaeus, 1758 - molluscs
Count: -
   Subphylum Conchifera Gegenbauer, 1878
  Count: -
     Class Gastropoda Cuvier, 1795 - snails and slugs
    Count: -
       Subclass Orthogastropoda Ponder & Lindberg, 1995
      Count: -
         Superorder Neritaemorphi Koken, 1896 see Order Neritimorpha Golikov & Starobogatov, 1975
        Count: [f] 1o;9f
           Order Neritopsina Cox & Knight, 1960 see Order Neritimorpha Golikov & Starobogatov, 1975
          Count: [f] 9f
             Superfamily Neritoidea Rafinesque, 1815
            Count: [f] 9f
               Family Helicinidae Férussac, 1822 - helicinids
              Count: -
                 Subfamily Helicininae Férussac, 1822
                Count: -