Colombian Oldfield Mouse vs

Thomasomys dispar compared with Comatricha pulchella

Key Differences

• Colombian Oldfield Mouse is Data Deficient while is Not Evaluated.

Taxonomic Classification

Rank	Colombian Oldfield Mouse
Kingdom	Animalia (Animals)	Protozoa (protozoa)
Phylum	Chordata (Chordates)	Mycetozoa
Class	Mammalia (Mammals)	Myxomycetes (Myxomycetes)
Order	Rodentia (Rodents)	Stemonitidales
Family	Cricetidae	Stemonitidaceae
Genus	Thomasomys	Comatricha
Species	Thomasomys dispar	Comatricha pulchella

Conservation Status

Colombian Oldfield Mouse

DD — Data Deficient

NE — Not Evaluated

Physical Characteristics

Attribute	Colombian Oldfield 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.

Habitat

Native to Asia and Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Brazil).

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.

<em>Comatricha pulchella</em> is a myxomycete in the class Myxomycetes, order Stemonitidales, belonging to the genus <em>Comatricha</em>. The species name, meaning beautiful in Latin, may allude to the delicate aesthetic of its sporangia, which are characteristic of the genus in having a stalked structure with an internal filamentous capillitium. <em>C. pulchella</em> occurs on rotting wood and plant litter in moist, forested environments. Like other species in the genus, it progresses through a motile plasmodial feeding stage before developing into sporangia that release spores adapted for wind dispersal. The species contributes to decomposition within forest ecosystems by consuming bacteria and other microorganisms during the plasmodial phase. No geographic range data are specified in the current record. Quantitative biological metrics are not applicable to this organism, and it has not been evaluated by the IUCN.