• Protoceratium Bergh, 1881
• Protoceratium aceros Bergh, 1882 accepted as Gonyaulax grindleyi Reinecke, 1967
• Protoceratium aculeatum (Stein) Schiller, 1937
• Protoceratium areolatum Kofoid, 1907
• Protoceratium cancellorum Kofoid & Michener, 1911
• Protoceratium globosum Kofoid & Michener, 1911
• Protoceratium pepo Kofoid & Michener, 1911
• Protoceratium promissum Kofoid & Michener, 1911
• Protoceratium reticulatum (Claparède & Lachmann) Butschli, 1885 accepted as Gonyaulax grindleyi Reinecke, 1967
• Protoceratium spinulosum (Murray & Whitting) Schiller, 1937
• Protoceratium splendens Meunier, 1910