| Peridinium quadridens (Stein) J. Schill., 1937 |
| Peridinium quinquecorne T.H. Abé, 1927 |
| Peridinium rectum Kof., 1907 |
| Peridinium seta Ehrenb., 1860 |
| Peridinium simplex Gran & Braarud, 1935 |
| Peridinium sinuosum Lemmerm., 1905 |
| Peridinium spinulosum Murray & Whitt., 1899 |
| Peridinium steinii Jørg., 1899 |
| Peridinium stellatum D. Wall, 1968 |
| Peridinium subinerme Paulsen, 1904 |
| Peridinium subinerme var. punctulatum (Paulsen) Schiller, 1937 |
| Peridinium subpyriforme P.A. Dang., 1927 |
| Peridinium thorianum Paulsen, 1905 |
| Peridinium trichoceros Ehrenb., 1860 |
| Peridinium trochoideum (F. Stein) Lemmerm., 1910 |
| Peridinium truncatum Graham, 1942 |
| Peridinium tumidum Okamura, 1907 |
| Peridinium umbonatum F. Stein, 1883 |
| Peridinium umbonatum var. deflandrei (Lefèvre) J. Popovsk & L. Pfeister, 1986 |
| Peridinium umbonatum var. umbonatum F. Stein, 1883 |