Gray-bellied Night Monkey vs Spotted Barbtail

Aotus lemurinus compared with Premnoplex brunnescens

Key Differences

• Gray-bellied Night Monkey is Vulnerable while Spotted Barbtail is Least Concern.

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Spotted Barbtail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Primates (Primates)	Passeriformes (Songbirds)
Family	Aotidae	Furnariidae
Genus	Aotus	Premnoplex
Species	Aotus lemurinus	Premnoplex brunnescens

Evolutionary Relationship

Gray-bellied Night Monkey and Spotted Barbtail share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Spotted Barbtail

LC — Least Concern

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Spotted Barbtail
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.

Spotted Barbtail

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Spotted Barbtail

Spotted Barbtail (Premnoplex brunnescens) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 3 countries:

🇨🇴 Colombia 🇪🇨 Ecuador 🇻🇪 Venezuela