Allen s Swamp Monkey vs Handley s Slender Opossum

Allenopithecus nigroviridis compared with Marmosops handleyi

Key Differences

• Allen s Swamp Monkey is Least Concern while Handley s Slender Opossum is Critically Endangered.

Taxonomic Classification

Rank	Allen s Swamp Monkey	Handley s Slender Opossum
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Primates (Primates)	Didelphimorphia (Didelphimorphia)
Family	Cercopithecidae (Old World Monkeys)	Didelphidae
Genus	Allenopithecus	Marmosops
Species	Allenopithecus nigroviridis	Marmosops handleyi

Evolutionary Relationship

Allen s Swamp Monkey and Handley s Slender Opossum share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Allen s Swamp Monkey

LC — Least Concern

Handley s Slender Opossum

CR — Critically Endangered

Physical Characteristics

Attribute	Allen s Swamp Monkey	Handley s Slender Opossum
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Allen s Swamp Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.

Allen s Swamp Monkey

The Allen s Swamp Monkey (Allenopithecus nigroviridis) is a species in the genus Allenopithecus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.