| SNo. | Scientific Name | Locality | Habitat | Basis of Record | Description | Recorded By | Record Number | Island | Source | Date |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Antithamnion erucacladellum | Honolulu Harbor: Station 4; Pier 11 | Preserved_Specimen | Defelice, R. | 429 | Oahu | BISH | 1997-08-26 | ||
| 2 | Antithamnion erucacladellum | Honolulu Harbor; Sea Land Pier | Preserved_Specimen | Defelice, R. | 1503 | Oahu | BISH | 1997-11-05 | ||
| 3 | Antithamnion erucacladellum | Lanikai; southern part | on lava rock | Preserved_Specimen | female plant | Magruder, W.H. | 746 | Oahu | BISH | 1990-12-17 |
| 4 | Antithamnion erucacladellum | Lanikai; southern part | on lava rock | Preserved_Specimen | female plant | Magruder, W.H. | 746 | Oahu | BISH | 1990-12-17 |
| 5 | Antithamnion erucacladellum | Lanikai, southern part | Intertidal; On horizontal lava rocks. In mats with Tiffaniella | Preserved_Specimen | Light red to pink coloration. Spermatangial, cystocarpic & tetrasporic material. | Magruder, W.H. | 746 | Oahu | BISH | 1990-12-17 |
| 6 | Antithamnion erucacladellum | Lanikai; southern part | on lava rock | Preserved_Specimen | female plant | Magruder, W.H. | 746 | Oahu | BISH | 1990-12-17 |