Gray leaf-eared mouse

The gray leaf-eared mouse ("Graomys griseoflavus") is a rodent species from South America. It is found in Argentina, Bolivia, Brazil and Paraguay; its habitat includes the Gran Chaco.
This is a variable and widely distributed species that can be found in many habitat types. It is considered to be a species complex, and some populations might be considered separate species.
 Genus "Graomys" contains species once considered to be part of the complex.