Black-headed Night Monkey vs Smith's Thorius

Aotus nigriceps compared with Thorius smithi

Key Differences

• Black-headed Night Monkey is Least Concern while Smith's Thorius is Critically Endangered.

Taxonomic Classification

Rank	Black-headed Night Monkey	Smith's Thorius
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Primates (Primates)	Caudata (Caudata)
Family	Aotidae	Plethodontidae
Genus	Aotus	Thorius
Species	Aotus nigriceps	Thorius smithi

Evolutionary Relationship

Black-headed Night Monkey and Smith's Thorius share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Black-headed Night Monkey

LC — Least Concern

Smith's Thorius

CR — Critically Endangered

Physical Characteristics

Attribute	Black-headed Night Monkey	Smith's Thorius
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-headed Night Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Smith's Thorius

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Found in Mexico. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Black-headed Night Monkey

The Black-headed Night Monkey (Aotus nigriceps) is a species in the genus Aotus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.