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 Rissooidea Gray, 1847
               Family Pomatiopsidae Stimpson, 1865
                 1 Subfamily Pomatiopsinae Stimpson, 1865
                 2 Subfamily Triculinae Annandale, 1924