n = 28
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Odontesthes argentinensis | (Valenciennes, 1835) | Odontesthes argentinensis | Atherinopsidae | |
| Odontesthes bicudo | Malabarba & Dyer, 2002 | Odontesthes bicudo | Atherinopsidae | |
| Odontesthes bonariensis | (Valenciennes, 1835) | Odontesthes bonariensis | Atherinopsidae | Argentinian silverside |
| Odontesthes brevianalis | (Günther, 1880) | Odontesthes brevianalis | Atherinopsidae | |
| Odontesthes debueni | Fischer, 1963 | Odontesthes brevianalis | Atherinopsidae | |
| Odontesthes gracilis | (Steindachner, 1898) | Odontesthes gracilis | Atherinopsidae | |
| Odontesthes guaza | de Buen, 1953 | Odontesthes humensis | Atherinopsidae | |
| Odontesthes guazu | de Buen, 1953 | Odontesthes humensis | Atherinopsidae | |
| Odontesthes hatcheri | (Eigenmann, 1909) | Odontesthes hatcheri | Atherinopsidae | |
| Odontesthes humensis | de Buen, 1953 | Odontesthes humensis | Atherinopsidae | |
| Odontesthes iguapensis | (Miranda Ribeiro, 1915) | Odontesthes argentinensis | Atherinopsidae | |
| Odontesthes incisa | (Jenyns, 1841) | Odontesthes incisa | Atherinopsidae | |
| Odontesthes jheringi | (Miranda Ribeiro, 1915) | Odontesthes argentinensis | Atherinopsidae | |
| Odontesthes ledae | Malabarba & Dyer, 2002 | Odontesthes ledae | Atherinopsidae | |
| Odontesthes mauleanum | (Steindachner, 1896) | Odontesthes mauleanum | Atherinopsidae | |
| Odontesthes mirinensis | Bemvenuti, 1996 | Odontesthes mirinensis | Atherinopsidae | |
| Odontesthes nigricans | (Richardson, 1848) | Odontesthes nigricans | Atherinopsidae | |
| Odontesthes orientalis | de Buen, 1950 | Odontesthes orientalis | Atherinopsidae | |
| Odontesthes perugiae | Evermann & Kendall, 1906 | Odontesthes perugiae | Atherinopsidae | |
| Odontesthes perugiai | Evermann & Kendall, 1906 | Odontesthes perugiae | Atherinopsidae | |
| Odontesthes piquava | Malabarba & Dyer, 2002 | Odontesthes piquava | Atherinopsidae | |
| Odontesthes platensis | (Berg, 1895) | Odontesthes platensis | Atherinopsidae | |
| Odontesthes regia | (Humboldt, 1821) | Odontesthes regia | Atherinopsidae | Chilean silverside |
| Odontesthes regillus | (Abbott, 1899) | Odontesthes regia | Atherinopsidae | Chilean silverside |
| Odontesthes retropinnis | (de Buen, 1953) | Odontesthes retropinnis | Atherinopsidae | |
| Odontesthes smitti | (Lahille, 1929) | Odontesthes smitti | Atherinopsidae | |
| Odontesthes wiebrichi | (Eigenmann, 1928) | Odontesthes wiebrichi | Atherinopsidae | |
| Odontesthes yucuman | Wingert, Ferrer & Malabarba, 2017 | Odontesthes yucuman | Atherinopsidae |