| Referensnr. | Beskrivning | År | Namn | Sida |
|---|---|---|---|---|
| 866 | 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. | 1987 | Cuthona annulata | 117 |
| 833 | Ruppert, E.E., R.S. Fox and R.D. Barnes 2004 Invertebrate Zoology. A functional evolutionary approach. 7th Ed. Brooks/Cole, Thomson Learning learning, Inc. 990 p. | 2004 | Cuthona annulata | --> |