Gray-bellied Night Monkey vs Macaco-de-cheiro

Aotus lemurinus compared with Saimiri cassiquiarensis

Key Differences

• Gray-bellied Night Monkey is Vulnerable while Macaco-de-cheiro is Near Threatened.

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Macaco-de-cheiro
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class same	Mammalia (mamíferos)	Mammalia (mamíferos)
Order same	Primates (primatas)	Primates (primatas)
Family	Aotidae	Cebidae
Genus	Aotus	Saimiri
Species	Aotus lemurinus	Saimiri cassiquiarensis

Evolutionary Relationship

Gray-bellied Night Monkey and Macaco-de-cheiro share a common ancestor at the Order level: Primates. (primatas)

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Macaco-de-cheiro

NT — Near Threatened

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Macaco-de-cheiro
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.

Macaco-de-cheiro

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Shared Countries

Both species can be found in 2 countries:

🇨🇴 Colombia 🇪🇨 Ecuador