Perognathus parvus (Great Basin pocket mouse)
| Class | Mammalia |
| Order | Rodentia |
| Family | Heteromyidae |
| Genus | Perognathus |
| Species | Perognathus parvus |
| Common | Great Basin pocket mouse |

| Diet | herbivorous / granivorous |
| Habitat | deserts, sage, shrub-steppe, and open grassland. |
| Description | Largest member of genus. Soft-furred. Tan or yellowish buff above, with dark hairs; white (usually) or buff below; Similar to P. longimembris with more distinct yellow-tan line on sides. Long distinctly bicolored tail, whitish below, tip slightly tufted, tip not dark. Use range map for species ID. |
| Skull Characteristics | Larger than P. longimembris, skull length > 24 mm. "Wings” on arches smaller and auditory bullae less inflated than Dipodomys. |
| Notes | Link to more species information:
Smithsonian Animal Diversity Web |