n = 14
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Diplomystes camposensis | Arratia, 1987 | Diplomystes camposensis | Diplomystidae | |
| Diplomystes chilensis | (Molina, 1782) | Diplomystes chilensis | Diplomystidae | Tollo |
| Diplomystes cuyanus | Ringuelet, 1965 | Olivaichthys cuyanus | Diplomystidae | |
| Diplomystes incognitus | Arratia & Quezada-Romegialli, 2017 | Diplomystes incognitus | Diplomystidae | |
| Diplomystes mesembrinus | Ringuelet, 1982 | Olivaichthys mesembrinus | Diplomystidae | |
| Diplomystes nahelbutaensis | Arratia, 1987 | Diplomystes nahuelbutaensis | Diplomystidae | |
| Diplomystes nahualbutensis | Arratia, 1987 | Diplomystes nahuelbutaensis | Diplomystidae | |
| Diplomystes nahuelbutaensis | Arratia, 1987 | Diplomystes nahuelbutaensis | Diplomystidae | |
| Diplomystes nahuelbutensis | Arratia, 1987 | Diplomystes nahuelbutaensis | Diplomystidae | |
| Diplomystes papillosus | (Valenciennes, 1840) | Diplomystes chilensis | Diplomystidae | Tollo |
| Diplomystes viedmensis | MacDonagh, 1931 | Olivaichthys viedmensis | Diplomystidae | Otuno |
| Diplomystes viedmensis cuyanus | Ringuelet, 1965 | Olivaichthys cuyanus | Diplomystidae | |
| Diplomystes viedmensis mesembrinus | Ringuelet, 1982 | Olivaichthys mesembrinus | Diplomystidae | |
| Diplomystes viedmensis viedmensis | (MacDonagh, 1931) | Olivaichthys viedmensis | Diplomystidae | Otuno |