| Referens | Francis, M.P., 1980 Habitat, food and reproductive activity of the nudibranch Hexabranchus sanguineus on Tongatapu Island. Veliger 22:252-258. |
| Ref. | 106058 Francis, M.P., 1980 |
| Sida | 253 |
| Named Used as Valid | Hexabranchus sanguineus |
| Observationsplats | |
| Distribution | Tongatapu Island, Tonga. |