Argentine humphead
- kingdom: Animalia
- phylum: Chordata
- class: Actinopterygii
- order: Perciformes
- family: Cichlidae
- genus: Gymnogeophagus
- species: Gymnogeophagus balzanii
Corumbá
Mato Grosso do Sul- Uruguaiana
Rio Grande do Sul
Brazil
Bella Unión
Artigas
Uruguay