Annamese Langur vs Black-headed Night Monkey

Trachypithecus margarita compared with Aotus nigriceps

Key Differences

• Annamese Langur is Endangered while Black-headed Night Monkey is Least Concern.

Taxonomic Classification

Rank	Annamese Langur	Black-headed Night Monkey
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order same	Primates (Primates)	Primates (Primates)
Family	Cercopithecidae (Old World Monkeys)	Aotidae
Genus	Trachypithecus	Aotus
Species	Trachypithecus margarita	Aotus nigriceps

Evolutionary Relationship

Annamese Langur and Black-headed Night Monkey share a common ancestor at the Order level: Primates. (Primates)

Conservation Status

Annamese Langur

EN — Endangered

Black-headed Night Monkey

LC — Least Concern

Physical Characteristics

Attribute	Annamese Langur	Black-headed Night Monkey
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Annamese Langur

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Black-headed Night Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Annamese Langur

The Annamese Langur (Trachypithecus margarita) is a species in the genus Trachypithecus. It is currently classified as Endangered on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

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.