Handley s Slender Opossum vs Niceforo Maria’s Oldfield Mouse

Marmosops handleyi compared with Thomasomys nicefori

Key Differences

• Handley s Slender Opossum is Critically Endangered while Niceforo Maria’s Oldfield Mouse is Least Concern.

Taxonomic Classification

Rank	Handley s Slender Opossum	Niceforo Maria’s Oldfield Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Didelphimorphia (Didelphimorphia)	Rodentia (Rodents)
Family	Didelphidae	Cricetidae
Genus	Marmosops	Thomasomys
Species	Marmosops handleyi	Thomasomys nicefori

Evolutionary Relationship

Handley s Slender Opossum and Niceforo Maria’s Oldfield Mouse share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Handley s Slender Opossum

CR — Critically Endangered

Niceforo Maria’s Oldfield Mouse

LC — Least Concern

Physical Characteristics

Attribute	Handley s Slender Opossum	Niceforo Maria’s Oldfield Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Handley s Slender Opossum

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and montane grasslands and shrublands, among 4 distinct biome types spanning the Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Colombia. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Niceforo Maria’s Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Shared Countries

Both species can be found in 1 countries:

🇨🇴 Colombia