Chacoan Colilargo
- kingdom: Animalia
- phylum: Chordata
- class: Mammalia
- order: Rodentia
- family: Cricetidae
- genus: Oligoryzomys
- species: Oligoryzomys chacoensis
Carandayti
Chuquisaca
Bolivia
Tobatí
Cordillera
Paraguay
Chacoan Colilargo Carandayti Tobatí