| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Comoé | River (basin) | questionable | 82238 |
| Cross | River (basin) | native | 57223 |
| Ethiopian | Zoogeographic realm | endemic | 3202 |
| Kwa-Ibo | River (basin) | native | 57223 |
| Mono | River (basin) | native | 57223 |
| Mungo | River (basin) | native | 81251 |
| Niger | River (basin) | native | 57223 |
| Niger Delta | River (basin) | native | 57223 |
| Nyong | River (basin) | questionable | 81251 |
| Ogowe | River (basin) | questionable | 82238 |
| Pra | River (basin) | native | 57223 |
| Sanaga | River (basin) | native | 81251 |
| Sio | River (basin) | native | 57223 |
| Volta | River (basin) | questionable | 82238 |
| Wouri | River (basin) | native | 81251 |