| Ceratium pentagonum Gourret, 1883 |
| Ceratium pentagonum f. robustum (Cleve, 1900) Jørg., 1911 |
| Ceratium pentagonum f. tenerum (Jørg.) J. Schill., 1937 |
| Ceratium pentagonum subsp. robustum (Cleve) H.W. Graham & Bronik., 1944 |
| Ceratium pentagonum subsp. subrobustum N. Peters, 1934 |
| Ceratium pentagonum subsp. tenerum (Jørg., 1920) H.W. Graham & Bronik., 1944 |
| Ceratium pentagonum var. subrobustum Jørg., 1920 |
| Ceratium pentagonum var. tenerum Jørg., 1920 |
| Ceratium petersii Steem. Niels., 1934 |
| Ceratium platycorne Daday, 1888 |
| Ceratium porrectum G. Karst., 1907 |
| Ceratium praelongum (Lemmerm.) Kof., 1907 |
| Ceratium pulchellum Scrhöd., 1906 |
| Ceratium pulchellum f. tripodioides Jørg., 1920 |
| Ceratium ranipes Cleve, 1900 |
| Ceratium recurvum (Jørg.) Reinecke, 1973 |
| Ceratium reflexum Cleve, 1900 |
| Ceratium reticulatum (Puchet) Cleve, 1900 |
| Ceratium schmidtii Jørg., 1911 |
| Ceratium schrankii Kof., 1907 |