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
         Suborder Neotaenioglossa Haller, 1882 see Order Sorbeoconcha Ponder & Lindberg, 1997
           Superfamily Cypraeoidea Rafinesque, 1815 [monotypic]
             Family Cypraeidae Rafinesque, 1815 - cowries
               Subfamily Erroneinae Schilder, 1927
                 Tribe Cypraeovulini Schilder, 1927
                   Genus Umbilia Jousseaume, 1884
                     1 Subgenus Umbilia Jousseaume, 1884
                     2 Subgenus †Rhynchocypraea Cossmann, 1898
                     3 Subgenus †Palliocypraea Cossmann, 1906