Allen s Swamp Monkey vs common brown lemur

Allenopithecus nigroviridis compared with Eulemur fulvus

Key Differences

• Allen s Swamp Monkey is Least Concern while common brown lemur is Vulnerable.

Taxonomic Classification

Rank	Allen s Swamp Monkey	common brown lemur
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order same	Primates (Primates)	Primates (Primates)
Family	Cercopithecidae (Old World Monkeys)	Lemuridae (Lemurs)
Genus	Allenopithecus	Eulemur
Species	Allenopithecus nigroviridis	Eulemur fulvus

Evolutionary Relationship

Allen s Swamp Monkey and common brown lemur share a common ancestor at the Order level: Primates. (Primates)

Conservation Status

Allen s Swamp Monkey

LC — Least Concern

common brown lemur

VU — Vulnerable

Physical Characteristics

Attribute	Allen s Swamp Monkey	common brown lemur
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Allen s Swamp Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

common brown lemur

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.

common brown lemur

The common brown lemur (<em>Eulemur fulvus</em>) is a medium-sized primate endemic to Madagascar, typically inhabiting diverse terrestrial and aquatic environments including tropical moist forests. This species is classified as Vulnerable on the IUCN Red List, reflecting significant population declines driven primarily by habitat loss and fragmentation resulting from deforestation and land conversion across its native range. As a member of the family Lemuridae, the common brown lemur is characterized by its brown to gray fur, pale face patches, and social group-living behavior. The species is typically diurnal and cathemeral, meaning it may be active during both day and night depending on season and conditions. It often feeds on fruits, leaves, flowers, and invertebrates, making it an important seed disperser in Malagasy forest ecosystems. The common brown lemur typically lives in social groups ranging in size from a few individuals to over a dozen animals. Biological traits of this species remain poorly documented in the scientific literature.