| SNo. | Scientific Name | Locality | Habitat | Basis of Record | Description | Recorded By | Record Number | Island | Source | Date |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Polysiphonia rubrorhiza | Natatorium wall, west side | Preserved_Specimen | Cystocarpic & tetrasporic. | Magruder, W.H. | 638 | Oahu | BISH | 1986-04-01 | |
| 2 | Polysiphonia rubrorhiza | Leleiwi; Richardson's Site 2 | Shallow subtidal. | Preserved_Specimen | Stuercke, B. | 7 | Hawaii | BISH | 2000-09-29 |