| Prionitis abbreviata Setch. & N.L. Gardner, 1924 |
| Prionitis abbreviata var. guaymasensis (E.Y. Dawson) E.Y. Dawson, 1959 |
| Prionitis acroidalea (Setchell & N.L. Gardner) E.Y. Dawson, 1961 |
| Prionitis angusta (Okamura) Okamura, 1899 |
| Prionitis australis (J. Agardh) J. Agardh, 1851 |
| Prionitis clarionensis (Setch. & N.L. Gardner) Kajimura, 1993 |
| Prionitis cornea (Okamura) E.Y. Dawson, 1958 |
| Prionitis decipiens (Mont.) J. Agardh, 1851 |
| Prionitis delicatula (W.R. Taylor) E.Y. Dawson, 1961 |
| Prionitis filiformis Kylin, 1941 |
| Prionitis hancockii W.R. Taylor, 1945 |
| Prionitis lanceolata (Harv.) Harv., 1853 |
| Prionitis linearis Kylin, 1941 |
| Prionitis mexicana E.Y. Dawson, 1944 |
| Prionitis pterocladina Wynne, 1993 |
| Prionitis sternbergii (C. Agardh) J. Agardh, 1851 |