| Lower Congo(expression, water, ecoregion, ecosystem) |
| Lower Niger-Benue(expression, water, ecoregion, ecosystem) |
| Lower Nile(expression, water, ecoregion, ecosystem) |
| Lower Zambezi(expression, water, ecoregion, ecosystem) |
| Lower mississippi river(expression, water, ecoregion, ecosystem) |
| Madagascar Eastern Highlands(expression, water, ecoregion, ecosystem) |
| Madagascar Eastern Lowlands(expression, water, ecoregion, ecosystem) |
| Madagascar Northwestern Basins(expression, water, ecoregion, ecosystem) |
| Madagascar Southern Basins(expression, water, ecoregion, ecosystem) |
| Madagascar Western Basins(expression, water, ecoregion, ecosystem) |
| Mai Ndombe(expression, water, ecoregion, ecosystem) |
| Malagarasi-Moyowosi(noun, water, ecoregion, ecosystem) |
| Malebo Pool(expression, water, ecoregion, ecosystem) |
| Mascarenes(noun, water, ecoregion, ecosystem) |
| Mekong(noun, water, ecoregion, ecosystem) |
| Middle Zambezi Luangwa(expression, water, ecoregion, ecosystem) |
| Mount Nimba(expression, water, ecoregion, ecosystem) |
| Mulanje(noun, water, ecoregion, ecosystem) |
| Namib Coastal(expression, water, ecoregion, ecosystem) |
| Nimba range(expression, water, ecoregion, ecosystem) |