Drylands vesper mouse
- kingdom: Animalia
- phylum: Chordata
- class: Mammalia
- order: Rodentia
- family: Cricetidae
- genus: Calomys
- species: Calomys musculinus
Azul- Hurlingham
- Necochea
Buenos Aires- Villa Santa Rita
Buenos Aires F.D.- El Rodeo
Catamarca- Río Cuarto
Cordoba
Argentina