| Citation | Gosliner, T., 1987 Nudibranchs of Southern Arfrica: A guide to opistobranch molluscs of Southern Africa. Sea Challengers and Jeff Hamann in association with the California Academy of Sciences. 136 pp. |
| Ref. | 866 Gosliner, T., 1987 |
| Page | 41 |
| Named Used as Valid | Retusa truncatula |
| Locality | |
| Distribution | Eastern Atlantic, Western Indian Ocean and the Mediterranean. |