| Scientific Name | Author | English Name |
|---|---|---|
| Diplomystes camposensis | Arratia, 1987 | |
| Diplomystes chilensis | (Molina, 1782) | Tollo |
| Diplomystes incognitus | Arratia & Quezada-Romegialli, 2017 | |
| Diplomystes nahuelbutaensis | Arratia, 1987 | |
| Olivaichthys cuyanus | (Ringuelet, 1965) | |
| Olivaichthys mesembrinus | (Ringuelet, 1982) | |
| Olivaichthys viedmensis | (MacDonagh, 1931) | Otuno |