Gray-bellied Night Monkey vs red howler monkey

Aotus lemurinus compared with Alouatta seniculus

Key Differences

• Gray-bellied Night Monkey is Vulnerable while red howler monkey is Least Concern.

Taxonomic Classification

Rank	Gray-bellied Night Monkey	red howler monkey
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	Atelidae
Genus	Aotus	Alouatta
Species	Aotus lemurinus	Alouatta seniculus

Evolutionary Relationship

Gray-bellied Night Monkey and red howler monkey share a common ancestor at the Order level: Primates. (Primates)

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

red howler monkey

LC — Least Concern

Physical Characteristics

Attribute	Gray-bellied Night Monkey	red howler monkey
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.

red howler monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

Shared Countries

Both species can be found in 3 countries:

🇨🇴 Colombia 🇪🇨 Ecuador 🇻🇪 Venezuela