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 Archaegastropoda see Order Archaeogastropoda Thiele, 1925
      Count: [g†g] 12f;40g; †1g
         Superfamily Fissurellacea Fleming, 1822 see Superfamily Fissurelloidea Fleming, 1822
        Count: [g] 1f;3g
           Family Fissurellidae Fleming, 1822 - keyhole limpets
          Count: [g] 3g
             Subfamily Emarginulinae Children, 1834
            Count: [g] 2g
               Genus Hemitoma Swainson, 1840
              Count: -
                 Subgenus Hemitoma (Hemitoma) Swainson, 1840
                Count: -