Gray-bellied Night Monkey vs Tome's spiny rat

Aotus lemurinus compared with Proechimys semispinosus

Key Differences

• Gray-bellied Night Monkey is Vulnerable while Tome's spiny rat is Least Concern.

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Tome's 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 semispinosus

Evolutionary Relationship

Gray-bellied Night Monkey and Tome's spiny rat share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Tome's spiny rat

LC — Least Concern

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Tome's 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.

Tome's spiny rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador.

Shared Countries

Both species can be found in 2 countries:

🇨🇴 Colombia 🇪🇨 Ecuador