| SNo. | Scientific Name | Locality | Habitat | Basis of Record | Recorded By | Record Number | Island | Source | Date |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Rhizoclonium riparium | Kaanapali | Brackial pond | Preserved_Specimen | Hau, S. | Maui | BISH | 1989-08-09 | |
| 2 | Rhizoclonium riparium | Okala Islet | Around & through 0.9 ha islet, low algal cover | Preserved_Specimen | Giuseffi, L.M. | 237 | Molokai | BISH | 2007-09-19 |
| 3 | Rhizoclonium riparium | Kaena, Manini Gulch | Preserved_Specimen | Doty, M.S. | 8248 | Oahu | BISH | 1950-10-21 | |
| 4 | Rhizoclonium riparium | Ala Moana Beach Park, Magic Island, west side where rock breakwater wall ends | epiphytic on Acanthophora -- 3 slides | Preserved_Specimen | Magruder, W.H. | Oahu | BISH | 1994-07-13 | |
| 5 | Rhizoclonium riparium | Maalaea Harbor, inside E. breakwater | Harbor | Preserved_Specimen | Hau, S. | 23735 | Maui | BISH | 2000-01-26 |
| 6 | Rhizoclonium riparium | Hanauma Bay | Preserved_Specimen | Doty, M.S. | 12440 | Oahu | BISH | 1954-04-06 | |
| 7 | Rhizoclonium riparium | Hilo; Reeds Bay, | Preserved_Specimen | Gilbert, W.J. | 63306 | Hawaii | BISH | 1963-07-01 | |
| 8 | Rhizoclonium riparium | Hilo Hotel; Hilo | Preserved_Specimen | Magruder, W.H. | 1329 | Hawaii | BISH | 1989-06-07 | |
| 9 | Rhizoclonium riparium | on Francis Brown's ponds about 4 miles beyond Maunakea Beach Hotel | Preserved_Specimen | Ellis, J. | 20358 | Hawaii | BISH | 1969-05-28 | |
| 10 | Rhizoclonium riparium | Station 32 | Preserved_Specimen | Geisler, K.J. | 32003 | Laysan Island | BISH | 2001-09-21 | |
| 11 | Rhizoclonium riparium | Hauula | Preserved_Specimen | Doty, M.S. | 8671 | Oahu | BISH | ||
| 12 | Rhizoclonium riparium | Kaneohe, Heeia Kea Pier | Preserved_Specimen | 23416 | Oahu | BISH | 1998-04-26 | ||
| 13 | Rhizoclonium riparium | Hana Bay, E Maui, Hana District | Preserved_Specimen | Titcomb, M. | Maui | BISH | 1933-08-01 | ||
| 14 | Rhizoclonium riparium | Ala Moana Beach Park | growing on, and entangled in, other algae, e.g. Acanthopora & Spyridea. | Preserved_Specimen | Magruder, W.H. | 56 | Oahu | BISH | 1988-04-29 |
| 15 | Rhizoclonium riparium | Honolulu | nr. Ala Moana; open marsh, nr. large numbers of Typha; nr. sea level | Preserved_Specimen | Neal, M.C. | 1189 | Oahu | BISH | 1939-12-02 |
| 16 | Rhizoclonium riparium | Waikiki Natatorium | Preserved_Specimen | Doty, M.S. | 12650 | Oahu | BISH | ||
| 17 | Rhizoclonium riparium | Hamoa Bay,E Maui, Hana District | Red cinder area on shore | Preserved_Specimen | (Not on sheet) | 25745 | Maui | BISH |