Gray-bellied Night Monkey vs Pacific Spiny-rat

Aotus lemurinus compared with Proechimys decumanus

Key Differences

• Gray-bellied Night Monkey is Vulnerable while Pacific Spiny-rat is Near Threatened.

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Pacific Spiny-rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Primates (Primates)	Rodentia (Rodents)
Family	Aotidae	Echimyidae
Genus	Aotus	Proechimys
Species	Aotus lemurinus	Proechimys decumanus

Evolutionary Relationship

Gray-bellied Night Monkey and Pacific Spiny-rat share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Pacific Spiny-rat

NT — Near Threatened

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Pacific Spiny-rat
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.

Pacific Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Shared Countries

Both species can be found in 1 countries:

🇪🇨 Ecuador