1. Species Cercomonas activa (Mylnikov) Mylnikov, 1992
2. Species Cercomonas acuminata Dujardin, 1841
3. Species Cercomonas biflagellata S.I.Steinberg, 1862
4. Species Cercomonas breviantennata (Skuja) Mylnikov & Karpov, 2004
5. Species Cercomonas clavata J.A.M.Perty, 1852
6. Species Cercomonas curvata J.A.M.Perty, 1852
7. Species Cercomonas cylindrica Dujardin, 1841
8. Species Cercomonas dactyloptera (Skuja) Mylnikov & Karpov, 2004
9. Species Cercomonas detracta Dujardin, 1841
10. Species Cercomonas draco (Skuja) Mylnikov & Karpov, 2004
11. Species Cercomonas falcula Perty, 1849
12. Species Cercomonas fusiformis Dujardin, 1841
13. Species Cercomonas globulus Dujardin, 1841
14. Species Cercomonas grandis Maskell, 1887
15. Species Cercomonas granulata W.J.Lee & D.J.Patterson, 2000
16. Species Cercomonas helicis (J.Leidy) C.Davaine
17. Species Cercomonas heterofilum A.C.Stokes
18. Species Cercomonas hominis C.Davaine, 1860
19. Species Cercomonas lacryma Dujardin, 1841
20. Species Cercomonas lagoenaris (Hamar) Mylnikov & Karpov, 2004
21. Species Cercomonas lapsa A.C.Stokes
22. Species Cercomonas longicauda Dujardin, 1841
23. Species Cercomonas lymnaei C.Davaine, 1875
24. Species Cercomonas ovata (Dujardin) S.M.Tong, Vørs & D.J.Patterson, 1997
25. Species Cercomonas parva M.Hartmann & Chagas, 1910
26. Species Cercomonas pyriformis (Skuja) Mylnikov & Karpov, 2004
27. Species Cercomonas rhizoidea-communis B.Liebetanz, 1910
28. Species Cercomonas rhizoidea-maxima B.Liebetanz, 1910
29. Species Cercomonas rhizoidea-minima B.Liebetanz, 1910
30. Species Cercomonas robusta (Hamar) Mylnikov & Karpov, 2004
31. Species Cercomonas skvortzovii Won J.Lee & D.J.Patterson, 2006
32. Species Cercomonas typicus W.S.Kent
33. Species Cercomonas ventricosa (Hamar) Mylnikov & Karpov, 2004
34. Species Cercomonas viridis Dujardin, 1841
35. Species Cercomonas crassicauda Dujardin, 1841 accepted as Paracercomonas crassicauda (Dujardin) D.Bass & Cavalier-Smith, 2009
36. Species Cercomonas intestinalis Lambl, 1859 accepted as Giardia intestinalis (Lambl) R.B.Pestana, 1917
37. Species Cercomonas muscae-domesticae (W.I.Burnett) Davaine, 1875 accepted as Herpetomonas muscarum (Leidy) Kent, 1880
38. Species Cercomonas saltans (Ehrenberg) Davaine, 1875 accepted as Bodo saltans Ehrenberg, 1832
39. Species Cercomonas gallinarum C.Davaine, 1875 (uncertain)
40. Species Cercomonas juli (J.Leidy) C.Davaine (uncertain)
41. Species Cercomonas lobata Dujardin, 1841 (uncertain)
42. Species Cercomonas melolonthae (J.Leidy) C.Davaine (uncertain)
43. Species Cercomonas mutabilis A.C.Stokes (uncertain)
44. Species Cercomonas ramulosa F.Stein (uncertain)
45. Species Cercomonas ranarum (Ehrenberg) C.Davaine (uncertain)
46. Species Cercomonas ranarum J.A.M.Perty, 1852 (uncertain)
47. Species Cercomonas truncata A.C.Stokes (uncertain)
48. Species Cercomonas truncata Dujardin, 1841 (uncertain)
49. Species Cercomonas undulans A.C.Stokes (uncertain)

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