Gray-bellied Night Monkey vs Gray smooth hound

Aotus lemurinus compared with Mustelus californicus

Key Differences

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

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Gray smooth hound
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Chondrichthyes (Cartilaginous Fish)
Order	Primates (Primates)	Carcharhiniformes (Ground Sharks)
Family	Aotidae	Triakidae
Genus	Aotus	Mustelus
Species	Aotus lemurinus	Mustelus californicus

Evolutionary Relationship

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

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Gray smooth hound

LC — Least Concern

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Gray smooth hound
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 smooth hound

Habitat

Typically found in marine environments from coastal waters to deep ocean.