Handley s Slender Opossum vs Koopman s Pencil-tailed Tree Mouse

Marmosops handleyi compared with Chiropodomys karlkoopmani

Key Differences

• Handley s Slender Opossum is Critically Endangered while Koopman s Pencil-tailed Tree Mouse is Vulnerable.

Taxonomic Classification

Rank	Handley s Slender Opossum	Koopman s Pencil-tailed Tree 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	Muridae (Mice & Rats)
Genus	Marmosops	Chiropodomys
Species	Marmosops handleyi	Chiropodomys karlkoopmani

Evolutionary Relationship

Handley s Slender Opossum and Koopman s Pencil-tailed Tree Mouse share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Handley s Slender Opossum

CR — Critically Endangered

Koopman s Pencil-tailed Tree Mouse

VU — Vulnerable

Physical Characteristics

Attribute	Handley s Slender Opossum	Koopman s Pencil-tailed Tree 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.

Koopman s Pencil-tailed Tree Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.