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 Tonnacea Suter, 1913 see Superfamily Tonnoidea Suter, 1913 (1825)
          Count: [g] 5f;17g
             1 Family Tonnidae Suter, 1913 (1825) - tuns
            Count: [g] 2g
             2 Family Cassidae P.A. Latreille, 1825 - helmet snails see Subfamily Cassinae Latreille, 1825
            Count: [g] 5g
             3 Family Ficidae Meek, 1864 (1840) - fig snails
            Count: [g] 1g
             4 Family Cymatiidae Iredale, 1913 see Family Ranellidae Gray, 1854
            Count: [g] 6g
             5 Family Bursidae Thiele, 1925 - frog snails
            Count: [g] 3g