Big eye chimaera vs Gray-bellied Night Monkey

Hydrolagus macrophthalmus compared with Aotus lemurinus

Key Differences

• Big eye chimaera is Least Concern while Gray-bellied Night Monkey is Vulnerable.

Taxonomic Classification

Rank	Big eye chimaera	Gray-bellied Night Monkey
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Holocephali (Holocephali)	Mammalia (Mammals)
Order	Chimaeriformes (Chimaeriformes)	Primates (Primates)
Family	Chimaeridae	Aotidae
Genus	Hydrolagus	Aotus
Species	Hydrolagus macrophthalmus	Aotus lemurinus

Evolutionary Relationship

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

Conservation Status

Big eye chimaera

LC — Least Concern

Gray-bellied Night Monkey

VU — Vulnerable

Physical Characteristics

Attribute	Big eye chimaera	Gray-bellied Night Monkey
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big eye chimaera

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

Found in Chile.

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.

Big eye chimaera

The Big eye chimaera (Hydrolagus macrophthalmus) is a species in the genus Hydrolagus. It is currently classified as Least Concern on the IUCN Red List. Native to South America, inhabiting ecosystems characteristic of the region.