| Citation | Trewavas, E. and F.R. Irvine, 1947, Fresh-water fishes.. p. 221-282. In F.R. Irvine (ed.) The fishes and fisheries of the Gold Coast. The Crown Agents for the Colonies, London. 352 p. |
| Ref. | Trewavas, E. and F.R. Irvine, 1947 |
| Page | 227 |
| Named Used as Valid | Gnathonemus ussheri |
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