Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Scaphopoda Bronn, 1862 - tusk shells
     Order Gadilida Starobogatov, 1974
       Family Entalinidae Chistikov, 1979
         Genus Bathoxiphus Pilsbry & Sharp, 1897
           1 Subgenus Rhomboxiphus Chistikov, 1983 see Genus Rhomboxiphus Chistikov, 1983
           2 Subgenus Solenoxiphus Chistikov, 1983 see Genus Solenoxiphus Chistikov, 1983