| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Chad | River (basin) | questionable | 367 |
| Congo | River (basin) | native | 47461 |
| Cross | River (basin) | questionable | 13331 |
| Ethiopian | Zoogeographic realm | endemic | 27896 |
| Ntem | River (basin) | native | 47461 |
| Nyong | River (basin) | native | 47461 |
| Ogowe | River (basin) | native | 47461 |
| Sanaga | River (basin) | native | 47461 |
| Sangha | River (basin) | native | 47461 |