Kingdom Protozoa Goldfuss, 1818 - protozoa
   Subkingdom Corticata Lankester, 1878 see Subkingdom Biciliata
     Infrakingdom Excavata T. Cavalier-Smith, 2002 see Supergroup Excavata Cavalier-Smith, 2002
       Superphylum Discicristata Cavalier-Smith, 1998
         Phylum Euglenozoa Cavalier-Smith, 1981
           Genus Bodo Ehrenberg, 1830
             Bodo caudatus (Dujardin, 1841) K.M. Diesing, 1850