| Scientific Name | Author | English Name |
|---|---|---|
| Hypnea cenomyce | J. Agardh | |
| Hypnea cervicornis | Agardh, 1851 | Tufted sea moss |
| Hypnea charoides | J.V. Lamouroux | |
| Hypnea cornuta | (Kützing) J. Agardh | |
| Hypnea esperi | Bory de Saint-Vincent, nom. illeg. | |
| Hypnea flagelliformis | Greville ex J. Agardh | |
| Hypnea hamulosa | (Esper) J.V. Lamouroux | |
| Hypnea musciformis | (Wulfen) J.V. Lamouroux | Crozier weed |
| Hypnea nidulans | Setchell | Red algae |
| Hypnea pannosa | J. Agardh | Tattered sea moss |
| Hypnea spinella | (C. Agardh) Kützing | |
| Hypnea valentiae | (Turner) Montagne |