| Delicate vesper mouse | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Rodentia |
| Family: | Cricetidae |
| Subfamily: | Sigmodontinae |
| Genus: | Calomys |
| Species: | C. tener |
| Binomial name | |
| Calomys tener Winge, 1888 | |
The delicate vesper mouse (Calomys tener) is a South American rodent species of the family Cricetidae. [2] It is found in Argentina, Bolivia and Brazil. [1] Its karyotype has 2n = 66 and FN = 66. [2]