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 Mesogastropoda Thiele, 1925 - mesogastropods see [unranked] mesogastropods
      Count: [g] 29f;82g
         Suborder Taenioglossa see Order Mesogastropoda Thiele, 1925
        Count: [g] 27f;75g
           Superfamily Littorinacea Gray, 1840 see Superfamily Littorinoidea Children, 1834
          Count: [g] 2f;4g
             1 Family Littorinidae Children, 1834 - periwinkles
            Count: [g] 3g
             2 Family Pomatiasidae Gray, 1852 see Family Pomatiidae Newton, 1891 (1828)
            Count: [g] 1g