Gray-bellied Night Monkey vs Lang's Red Colobus

Aotus lemurinus compared with Piliocolobus langi

Key Differences

• Gray-bellied Night Monkey is Vulnerable while Lang's Red Colobus is Endangered.

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Lang's Red Colobus
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	Aotidae	Cercopithecidae (Old World Monkeys)
Genus	Aotus	Piliocolobus
Species	Aotus lemurinus	Piliocolobus langi

Evolutionary Relationship

Gray-bellied Night Monkey and Lang's Red Colobus share a common ancestor at the Order level: Primates. (Primates)

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Lang's Red Colobus

EN — Endangered

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Lang's Red Colobus
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Gray-bellied Night Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Lang's Red Colobus

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.