1. West Indian Manatee (Trichechus manatus):
- Found in the coastal waters of the southeastern United States, the Caribbean Sea, and parts of Central and South America.
2. Amazonian Manatee (Trichechus inunguis):
- Found in the Amazon River basin and its tributaries in South America.
3. West African Manatee (Trichechus senegalensis):
- Found along the western coast of Africa, from Senegal to Angola.