Large vesper mouse
- kingdom: Animalia
- phylum: Chordata
- class: Mammalia
- order: Rodentia
- family: Cricetidae
- genus: Calomys
- species: Calomys callosus
Burruyacú
Tucuman
ArgentinaMonteagudo
ChuquisacaSan Ramón
Santa Rosa
El BeniChulumani
La PazBuena Vista
Pailón
Santa Cruz
BoliviaFiladelfia
BoquerónNanawa
Presidente Hayes
Paraguay