The mountain spiny pocket mouse (Heteromys oresterus) is a species of rodent in the family Heteromyidae. It is endemic to Costa Rica. Its natural habitat is subtropical or tropical moist lowland forests.
| Mountain spiny pocket mouse | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Rodentia |
| Family: | Heteromyidae |
| Genus: | Heteromys |
| Species: | H. oresterus |
| Binomial name | |
| Heteromys oresterus W. P. Harris, 1932 | |
