| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Benue | River (basin) | questionable | 57223 |
| Chad | River (basin) | misidentification | 13331 |
| Cross | River (basin) | native | 57223 |
| Ethiopian | Zoogeographic realm | endemic | 13094 |
| Lower Niger | River (basin) | questionable | 57223 |
| Mungo | River (basin) | native | 81251 |
| Niger | River (basin) | questionable | 57223 |
| Rio del Rey | River (basin) | native | 81251 |