Gray-bellied Night Monkey vs Gray Longbill

Aotus lemurinus compared with Macrosphenus concolor

Key Differences

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

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Gray Longbill
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Primates (Primates)	Passeriformes (Songbirds)
Family	Aotidae	Macrosphenidae
Genus	Aotus	Macrosphenus
Species	Aotus lemurinus	Macrosphenus concolor

Evolutionary Relationship

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

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Gray Longbill

LC — Least Concern

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Gray Longbill
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.

Gray Longbill

Habitat

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

Range

Found in Norway.