| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Banio | River (basin) | native | 81635 |
| Chiloango | River (basin) | native | 120641 |
| Cross | River (basin) | native | 13331 |
| Ethiopian | Zoogeographic realm | endemic | 2915 |
| Farmington | River (basin) | native | 13331 |
| Fatala | River (basin) | native | 13331 |
| Great Scarcies | River (basin) | native | 13331 |
| Kienke | River (basin) | native | 81635 |
| Konkouré | River (basin) | native | 13331 |
| Kouilou-Niari | River (basin) | native | 81635 |
| Kwa-Ibo | River (basin) | native | 81274 |
| Little Scarcies | River (basin) | native | 13331 |
| Loémé | River (basin) | native | 81635 |
| Lofa | River (basin) | native | 13331 |
| Moa | River (basin) | native | 13331 |
| Niger | River (basin) | native | 81274 |
| Ntem | River (basin) | native | 81635 |
| Nyanga | River (basin) | native | 81635 |
| Ogowe | River (basin) | native | 81635 |
| Ogun | River (basin) | native | 81274 |
| Pampana | River (basin) | native | 13331 |
| Rokel | River (basin) | native | 13331 |
| Saint John | River (basin) | native | 13331 |
| Saint Paul | River (basin) | native | 13331 |
| Sanaga | River (basin) | native | 81635 |
| Sewa | River (basin) | native | 13331 |
| Wouri | River (basin) | native | 81635 |