Mollusca Linnaeus, 1758 - molluscs see Phylum Mollusca Linnaeus, 1758
   Gastropoda Cuvier, 1795 see Class Gastropoda Cuvier, 1795
     Clade Vetigastropoda Salvini-Plawen, 1980 see Order Vetigastropoda Salvini-Plawen, 1980
       Superfamily Seguenzioidea Verrill, 1884
         Family Seguenziidae Verrill, 1884
           Subfamily Seguenziinae Verrill, 1884
             1 Tribe Seguenziini Verrill, 1884
             2 Tribe Fluxinellini Marshall, 1991