Black-headed Night Monkey vs Taiwan spurdog

Aotus nigriceps compared with Squalus formosus

Key Differences

• Black-headed Night Monkey is Least Concern while Taiwan spurdog is Endangered.

Taxonomic Classification

Rank	Black-headed Night Monkey	Taiwan spurdog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Primates (Primates)	Squaliformes (Squaliformes)
Family	Aotidae	Squalidae
Genus	Aotus	Squalus
Species	Aotus nigriceps	Squalus formosus

Evolutionary Relationship

Black-headed Night Monkey and Taiwan spurdog share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Black-headed Night Monkey

LC — Least Concern

Taiwan spurdog

EN — Endangered

Physical Characteristics

Attribute	Black-headed Night Monkey	Taiwan spurdog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-headed Night Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Taiwan spurdog

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan. Currently classified as 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.