| Name | Gymnothamnion bipinnatum Collins & Hervey |
| Authorship | Collins & Hervey |
| Rank | Species |
| Placed in | Gymnothamnion J. Agardh |
| Citation | 1917 Algae Bermuda 139 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Gymnothamnion bipinnatum Collins & Hervey |
| Identification made in | [no date] (1) |