Phylum Amoebozoa Lühe, 1913
   Subphylum Protamoebae Cavalier-Smith, 2004 see Subphylum Lobosa Carpenter, 1861
     Class Lobosea (Carpenter, 1861) Cavalier-Smith, 1993 see Subphylum Lobosa Carpenter, 1861
       Order Euamoebida Lepşi, 1960
         Superfamily Amoeboidea Ehrenberg, 1838 see Order Tubulinida Smirnov et al., 2005
           Family Hartmannellidae Volkonsky, 1931
             Genus Hartmannella Alexeieff, 1912
               1 Hartmannella vermiformis Page, 1967 see Vermamoeba vermiformis (Page, 1967)
               2 Hartmannella cantabrigiensis Page, 1974