Phylum [Mollusca] Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795
       Order Neogastropoda Wenz, 1938 see Suborder Neogastropoda Wenz, 1938
         Suborder Toxoglossa (Troschel, 1848) see Superfamily Conacea Rafinesque, 1815
           Superfamily Conacea Rafinesque, 1815 see Superfamily Conoidea Fleming, 1822
             Family Turridae Adams & Adams, 1853 (1838) - turret snails
               Subfamily Turrinae Adams & Adams, 1853 (1838)
                 Genus Bathytoma Harris & Burrows, 1891
                   1 Subgenus Bathytoma (Bathytoma) Harris & Burrows, 1891
                   2 Subgenus Bathytoma (Micantaplex) Springsteen & Leobrera, 1986, orth. inval. see Subgenus Micantapex Iredale, 1936
                   3 Subgenus Bathytoma (Parabathytoma) Shuto, 1961
                   4 Subgenus Bathytoma (Riuguhdrillia) Oyama, 1951