Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795
       Order Caenogastropoda Cox, 1960 see Superorder Caenogastropoda Cox, 1960
         Superfamily Ampullarioidea Gray, 1824
           Family Ampullariidae Gray, 1824
             Genus Lanistes Montfort, 1810
               1 Subgenus Leroya Grandidier, 1887
               2 Subgenus Meladomus Swainson, 1840