Large vesper mouse | |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Rodentia |
Family: | Cricetidae |
Genus: | Calomys |
Species: | C. callosus |
Binomial name | |
Calomys callosus Rengger, 1830 |
The large vesper mouse, Calomys callosus, is a South American rodent species of the family Cricetidae.
It is found in Argentina, Bolivia, Brazil and Paraguay.
Its karyotype has 2n = 50 and FN = 66. It was formerly synonymized with C. expulsus, but the latter has 2n = 66 and FN = 68.
It is particularly notable as the vector of Bolivian hemorrhagic fever.