Mollusca Linnaeus, 1758 - molluscs see Phylum Mollusca Linnaeus, 1758
   Gastropoda Cuvier, 1795 see Class Gastropoda Cuvier, 1795
     Clade Caenogastropoda Cox, 1960 see Superorder Caenogastropoda Cox, 1960
       Clade Sorbeoconcha Ponder & Lindberg, 1997 see Order Sorbeoconcha Ponder & Lindberg, 1997
         Clade Hypsogastropoda Ponder & Lindberg, 1997 see Suborder Hypsogastropoda Ponder & Lindberg, 1997
           Clade Littorinimorpha Pchelintsev, 1963 see Infraorder Littorinimorpha Pchelintsev, 1963
             Superfamily Cypraeoidea Rafinesque, 1815
               Family Ovulidae Fleming, 1822 - egg snails
                 1 Subfamily Ovulinae Fleming, 1822
                 2 Subfamily †Cypraediinae Schilder, 1927
                 3 Subfamily Jenneriinae Thiele, 1929
                 4 Subfamily Pediculariinae Gray, 1853
                 5 Subfamily Pseudocypraeinae Steadman & Cotton, 1943