Colombian Oldfield Mouse vs Desmarest’s Spiny Pocket Mouse

Thomasomys dispar compared with Heteromys desmarestianus

Key Differences

• Colombian Oldfield Mouse is Data Deficient while Desmarest’s Spiny Pocket Mouse is Least Concern.

Taxonomic Classification

Rank	Colombian Oldfield Mouse	Desmarest’s Spiny Pocket Mouse
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Mammalia (哺乳類)	Mammalia (哺乳類)
Order same	Rodentia (ネズミ目)	Rodentia (ネズミ目)
Family	Cricetidae	Heteromyidae
Genus	Thomasomys	Heteromys
Species	Thomasomys dispar	Heteromys desmarestianus

Evolutionary Relationship

Colombian Oldfield Mouse and Desmarest’s Spiny Pocket Mouse share a common ancestor at the Order level: Rodentia. (ネズミ目)

Conservation Status

Colombian Oldfield Mouse

DD — Data Deficient

Desmarest’s Spiny Pocket Mouse

LC — Least Concern

Physical Characteristics

Attribute	Colombian Oldfield Mouse	Desmarest’s Spiny Pocket Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Colombian Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Desmarest’s Spiny Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Colombian Oldfield Mouse

<em>Thomasomys dispar</em>, commonly known as the Colombian Oldfield Mouse, is a small rodent species belonging to the genus <em>Thomasomys</em> within the family Cricetidae. This species is classified as Data Deficient, indicating that insufficient information is currently available to evaluate its conservation status with confidence. It has been documented in Colombia, where it inhabits diverse terrestrial and aquatic-adjacent environments. Members of the genus <em>Thomasomys</em> are typically associated with high-altitude Andean habitats, including páramo grasslands, shrublands, and montane forest edges, where they occupy ground-level microhabitats and burrow in soft soils. These mice are generally omnivorous, consuming seeds, plant material, and invertebrates, though specific dietary data for <em>Thomasomys dispar</em> have not been recorded. Biological traits of this species remain poorly documented in the scientific literature. The Data Deficient classification highlights the need for targeted surveys in Colombian Andean regions to determine population size, distribution, and the ecological requirements of this poorly known rodent.

Shared Countries

Both species can be found in 1 countries:

🇨🇴 Colombia