| Citation | Branch, G.M., C.L. Griffiths, M.L. Branch and L. Beckley, 2005 Two oceans: a guide to marine life in southern Africa. Struik Publishers, Cape Town, 360 p. |
| Réf. | 80553 Branch, G.M., C.L. Griffiths, M.L. Branch and L. Beckley, 2005 |
| Page | 136 |
| Named Used as Valid | Helcion concolor |
| Localité | |
| Distribution | South Africa. |