Gray-bellied Night Monkey vs robust shell

Aotus lemurinus compared with Littoraria undulata

Key Differences

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

Taxonomic Classification

Rank	Gray-bellied Night Monkey	robust shell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Gastropoda (Gastropoda)
Order	Primates (Primates)	Littorinimorpha (Littorinimorpha)
Family	Aotidae	Littorinidae
Genus	Aotus	Littoraria
Species	Aotus lemurinus	Littoraria undulata

Evolutionary Relationship

Gray-bellied Night Monkey and robust shell share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

robust shell

LC — Least Concern

Physical Characteristics

Attribute	Gray-bellied Night Monkey	robust shell
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.

robust shell

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Found in Taiwan.