1. Species Cerataulus labuensis Cleve
2. Species Cerataulus orbicularis Forti
3. Species Cerataulus polymorphus (Montagne) Van Heurck
4. Species Cerataulus simsae Hernández-Becerril & Baron-Campis, 2012
5. Species Cerataulus smithii Ralfs ex Pritchard, 1861
6. Species Cerataulus thermalis (Meneghini) Ralfs
7. Species Cerataulus turgidus Ehrenberg
8. Species Cerataulus laevis (Ehrenberg) Ralfs, 1861 accepted as Pleurosira laevis (Ehrenberg) Compère, 1982 (synonym)
9. Species Cerataulus turgidus (Ehrenberg) Ehrenberg, 1844 accepted as Odontella turgida (Ehrenberg) Kützing, 1844 accepted as Denticella turgida Ehrenberg, 1840 (synonym)
10. Species Cerataulus antediluvianus M. Peragallo in Tempère & Peragallo, 1913 (uncertain > unassessed)
11. Species Cerataulus azoricus Pavillard, 1930 (uncertain > unassessed)
12. Species Cerataulus bergonii H.Peragallo, 1892 (uncertain > unassessed)
13. Species Cerataulus boryanus Pantocsek, 1889 (uncertain > unassessed)
14. Species Cerataulus californicus Schmidt in Schmidt et al., 1888 (uncertain > unassessed)
15. Species Cerataulus chinensis Grunow, 1877 (uncertain > unassessed)
16. Species Cerataulus deflandrei Cheneviere, 1934 (uncertain > unassessed)
17. Species Cerataulus ellipticus Vekschina, 1961 (uncertain > unassessed)
18. Species Cerataulus galapagensis (Cleve) Schmidt in Schmidt et al., 1888 accepted as Biddulphia gallapagensis Cleve, 1881 (uncertain > unassessed)
19. Species Cerataulus hungaricus Pantocsek, 1889 (uncertain > unassessed)
20. Species Cerataulus hustedtii Amossé, 1969 (uncertain > unassessed)
21. Species Cerataulus imperator Hanna & Grant, 1926 (uncertain > unassessed)
22. Species Cerataulus japonicus Pantocsek, 1892 (uncertain > unassessed)
23. Species Cerataulus johnsonianus (Greville) Cleve, 1885 accepted as Biddulphia johnsoniana Greville, 1866 (uncertain > unassessed)
24. Species Cerataulus kinkeri Schmidt in Schmidt et al., 1888 (uncertain > unassessed)
25. Species Cerataulus labuani (Cleve) Cleve in Schmidt et al., 1888 accepted as Cerataulus labuensis var. labuensis Cleve, 1883 (uncertain > unassessed)
26. Species Cerataulus laevis [sensu] Rabenhorst, 1864 (uncertain > unassessed)
27. Species Cerataulus marginatus Grove & Sturt, 1887 (uncertain > unassessed)
28. Species Cerataulus ovalis Schmidt in Schmidt et al., 1888 (uncertain > unassessed)
29. Species Cerataulus pacificus Hajós, 1976 (uncertain > unassessed)
30. Species Cerataulus pacificus Grunow in Schmidt et al., 1888 (uncertain > unassessed)
31. Species Cerataulus pangeroni Thum accepted as Cerataulus laevis var. pangeroni Leuduger-Fortmorel, 1892 (uncertain > unassessed)
32. Species Cerataulus peragalloi Pantocsek (uncertain > unassessed)
33. Species Cerataulus petitii Leuduger-Fortmorel, 1892 (uncertain > unassessed)
34. Species Cerataulus radiatus R.Ross, 1986 (uncertain > unassessed)
35. Species Cerataulus reichardtii Grunow, 1863 (uncertain > unassessed)
36. Species Cerataulus rotundatus Schibkova in Krotov & Schibkova, 1959 (uncertain > unassessed)
37. Species Cerataulus rotundus Tempère & Brun, 1890 (uncertain > unassessed)
38. Species Cerataulus scaber (uncertain > unassessed)
39. Species Cerataulus socotrensis Kitton, 1884 (uncertain > unassessed)
40. Species Cerataulus thermalis Grunow, 1863 (uncertain > unassessed)
41. Species Cerataulus thomei 'Leuduger-Fortmorel' according to Mills, 1933 (uncertain > unassessed)
42. Species Cerataulus thumii Schmidt in Schmidt et al., 1888 (uncertain > unassessed)
43. Species Cerataulus titianus Grunow, 1863 (uncertain > unassessed)
44. Species Cerataulus weissflogii Pantocsek (uncertain > unassessed)

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