| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Hypnea cenomyce J. Agardh |
Southeast Pacific | ||
| Hypnea cervicornis Agardh, 1851 |
Tufted sea moss | Indo-West Pacific | |
| Hypnea charoides J.V. Lamouroux |
Western Central Pacific | ||
| Hypnea cornuta (Kützing) J. Agardh |
Western Indian Ocean and Western Central Atlantic | ||
| Hypnea esperi Bory de Saint-Vincent, nom. illeg. |
Pacific Ocean | ||
| Hypnea flagelliformis Greville ex J. Agardh |
Western Indian Ocean | ||
| Hypnea hamulosa (Esper) J.V. Lamouroux |
Western Indian Ocean | ||
| Hypnea musciformis (Wulfen) J.V. Lamouroux |
Crozier weed | Indo-West Pacific, Atlantic Ocean and the Mediterranean | |
| Hypnea nidulans Setchell |
Red algae | Indian Ocean | |
| Hypnea pannosa J. Agardh |
Tattered sea moss | Indo-Pacific and Atlantic Ocean | |
| Hypnea spinella (C. Agardh) Kützing |
Indian Ocean and Western Central Atlantic | ||
| Hypnea valentiae (Turner) Montagne |
Atlantic Ocean |