Phylum [Mollusca] Linnaeus, 1758 - molluscs
Count: -
   Class Gastropoda Cuvier, 1795 - snails and slugs
  Count: -
     Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795
    Count: [g†g] 4o;64f;261g; †1g
       Order Heterogastropoda see Superfamily Heterogastropoda
      Count: [g] 4f;12g
         Suborder Ptenoglossa Gray, 1853 see Infraorder Ptenoglossa Gray, 1853
        Count: [g] 4f;12g
           Superfamily Epitoniacea Berry, 1910 see Superfamily Epitonioidea Berry, 1910 (1812)
          Count: [g] 1f;3g
             Family Epitoniidae Berry, 1910 (1812) - wentletraps
            Count: [g] 3g
               Genus Epitonium Röding, 1798
              Count: -
                 1 Subgenus Epitonium (Epitonium) Röding, 1798
                Count: -
                 2 Subgenus Epitonium (Gyroscala) Boury, 1887 see Genus Gyroscala Boury, 1887
                Count: -
                 3 Subgenus Epitonium (Hirtoscala) Monterosato, 1890
                Count: -
                 4 Subgenus Epitonium (Laniscala) Lan, 1976 see Genus Laniscala Lan, 1976
                Count: -
                 5 Subgenus Epitonium (Papyriscala) Boury, 1909 see Genus Papyriscala Boury, 1909
                Count: -
                 6 Subgenus Epitonium (Spiniscala) Boury, 1909 see Genus Spiniscala Boury, 1909
                Count: -