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 Scaphoconchoidea Bandel, 1993, nom. inval. [monotypic]
             Family Capulidae Fleming, 1822 - cap snails
               01 Genus Capulus Montfort, 1810
               02 Genus Krebsia Mörch, 1877
               03 Genus Neojanacus Suter, 1907
               04 Genus Trichotropis Broderip & Sowerby, 1829
               05 Genus Amamiconcha Habe, 1961
               06 Genus Akibumia Kuroda & Habe, 1959
               07 Genus Alviniconcha Okutani & Ohta, 1988
               08 Genus Icuncula Iredale, 1924
               09 Genus Lippistes Montfort, 1810
               10 Genus Lyocyclus Thiele, 1925
               11 Genus Sirius Hedley, 1900
               12 Genus Trichamathina Habe, 1962
               13 Genus Torellia Jeffreys, 1867
               14 Genus Discotrichoconcha Powell, 1951
               15 Genus Zelippistes Finlay, 1927