Gray-bellied Night Monkey vs marsh rice rat

Aotus lemurinus compared with Oryzomys palustris

Key Differences

• Gray-bellied Night Monkey is Vulnerable while marsh rice rat is Least Concern.

Taxonomic Classification

Rank	Gray-bellied Night Monkey	marsh rice 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	Cricetidae
Genus	Aotus	Oryzomys
Species	Aotus lemurinus	Oryzomys palustris

Evolutionary Relationship

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

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

marsh rice rat

LC — Least Concern

Physical Characteristics

Attribute	Gray-bellied Night Monkey	marsh rice 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.

marsh rice rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.