| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Tachyeres brachypterus (Latham, 1790) |
Falkland steamerduck | Southwest Atlantic | |
| Tachyeres leucocephalus Humphrey & Thompson, 1981 |
Chubut steamerduck | Endemic to the southern coast of Chubut province of Argentina | |
| Tachyeres patachonicus (King, 1831) |
Flying steamerduck | Southeast Pacific and Southwest Atlantic | |
| Tachyeres pteneres (Forster, 1844) |
Flightless steamerduck | Southwest Atlantic and Southeast Pacific |