| Species | Name Used in Reference |
|---|---|
| Gymnogeophagus australis (Eigenmann, 1907) | Gymnogeophagus australis (p. 23 ) |
| Gymnogeophagus labiatus (Hensel, 1870) | Gymnogeophagus labiatus (p. 23 ) |
| Gymnogeophagus tiraparae González-Bergonzoni, Loureiro & Oviedo, 2009 | Gymnogeophagus tiraparae (p. 20;fig.1-2 ) |