The Tocantins vesper mouse (Calomys tocantinsi) is a South American rodent species of the family Cricetidae.[2][3] It is found in Brazil. Its karyotype has 2n = 46 and FNa = 66.[2]
| Tocantins vesper mouse | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Rodentia |
| Family: | Cricetidae |
| Subfamily: | Sigmodontinae |
| Genus: | Calomys |
| Species: | C. tocantinsi |
| Binomial name | |
| Calomys tocantinsi Bonvicino, Lima and Almeida, 2003 | |
