eukaryotes see Domain Eukaryota Chatton, 1925
   Protista Haeckel, 1866 see Kingdom protists
     free-living heterotrophic flagellates
       01 Genus Acinetactis Stokes, 1886
       02 Genus Allantion Sandon, 1924
       03 Genus Allas Sandon, 1927
       04 Genus Alphamonas Alexeieff, 1918 see Genus Colpodella Cienkowski, 1865
       05 Genus Amphimonas Dujardin, 1841
       06 Genus Artodiscus Penard, 1890
       07 Genus Aulomonas Lackey, 1942
       08 Genus Bodomorpha A.C. Hollande, in P.-P. Grassé, 1952
       09 Genus Bodopsis E.J. Lemmermann, 1913
       10 Genus Bordnamonas Larsen & Patterson, 1990
       11 Genus Campanoeca Throndsen, 1974
       12 Genus Cladomonas Stein, 1878
       13 Genus Clautriavia Massart, 1900
       14 Genus Codonoeca James-Clark, 1866
       15 Genus Cruzella de Faria et al., 1923
       16 Genus Cyathomonas Fromentel (1874)
       17 Genus Cyclomonas Fromentel, 1874
       18 Genus Dallingeria Kent, 1880
       19 Genus Dimastigamoeba F. Blochmann, 1894 see Genus Cercomonas F. Dujardin, 1841
       20 Genus Dingensia Patterson & Zölffel, 1991 see Genus Colpodella Cienkowski, 1865
       21 Genus Dinoasteromonas Bursa (1971)
       22 Genus Dinomonas Kent, 1880
       23 Genus Diplocalium Grassé & Deflandre, 1952
       24 Genus Diplomita Fromentel, 1874
       25 Genus Diploselmis Kent, 1881
       26 Genus Errera Schouteden, 1907
       27 Genus Fromentella Patterson & M. Zölffel, 1992
       28 Genus Heliobodo Valkanov, 1928
       29 Genus Kamera (Woodcock, 1916) Patterson & Zölffel, 1991
       30 Genus Kiitoksia Vørs, 1992
       31 Genus Macappella Patterson & Zölffel, 1991
       32 Genus Metopion Larsen & Patterson, 1990
       33 Genus Metromonas Larsen & Patterson, 1990
       34 Genus Microcometes Cienkowski, 1876
       35 Genus Micromonas I. Manton & M. Parke (1960), nom. illeg. see Genus Micrinomonas Doweld (2001)
       36 Genus Monochrysis Skuja (1948)
       37 Genus Parabodo Skuja, 1939
       38 Genus Paramastix Skuja, 1948
       39 Genus Paramonas Kent, 1880
       40 Genus Peltomonas Vlk (1942)
       41 Genus Phanerobia Skuja, 1948
       42 Genus Phloxamoeba Bovee, 1951
       43 Genus Phyllomitus Stein, 1878
       44 Genus Phyllomonas Klebs, 1892
       45 Genus Platytheca Stein (1878)
       46 Genus Pleurostomum Namyslovsky, 1913
       47 Genus Proleptomonas Woodcock, 1916
       48 Genus Quadricilia Vørs, 1992
       49 Genus Rhizomonas Kent, 1880
       50 Genus Rigidomastix Aléxéieff, 1929
       51 Genus Sainouron Sandon, 1924
       52 Genus Salpingorhiza Klug, 1936
       53 Genus Schewiakoffia Corliss, 1960, nom. dub.
       54 Genus Stenocodon Pascher, 1942
       55 Genus Stephanomonas Kent, 1881
       56 Genus Toshiba Patterson & M. Zölffel, in D.J. Patterson & J. Larsen, 1991
       57 Genus Trichonema Fromentel, 1874