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 Rissooidea Gray, 1847
           Family Iravadiidae Thiele, 1928
             01 Genus Iravadia Blanford, 1867
             02 Genus Acliceratia Ponder, 1984
             03 Genus Cavilabium Cossmann, 1888
             04 Genus Ceratia Adams & Adams, 1852
             05 Genus Chevallieria Cossmann, 1888
             06 Genus †Cossmannia Newton, 1891
             07 Genus Fairbankia Blanford, 1868
             08 Genus Hyala Adams & Adams, 1852
             09 Genus Liroceratia Ponder, 1984
             10 Genus Nozeba Iredale, 1915
             11 Genus Rhombostoma Seguenza, 1876
             12 Genus Rissopsis Garrett, 1873