Calomys expulsus
| Caatinga vesper mouse | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Rodentia |
| Family: | Cricetidae |
| Genus: | Calomys |
| Species: |
C. expulsus (Lund, 1841) |
| Binomial name | |
|
Calomys expulsus |
|
The caatinga vesper mouse, Calomys expulsus, is a rodent species in the family Cricetidae from South America. It is endemic to eastern Brazil, where it is found in open savanna (cerrado) and thorny scrub (caatinga) habitats. Its karyotype has 2n = 66 and FN = 68. It was formerly synonymized with C. callosus, but the latter has 2n = 50 and FN = 66.
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