Black-headed Night Monkey vs Pacific Spiny-rat

Aotus nigriceps compared with Proechimys decumanus

Key Differences

• Black-headed Night Monkey is Least Concern while Pacific Spiny-rat is Near Threatened.

Taxonomic Classification

Rank	Black-headed Night Monkey	Pacific Spiny-rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Primates (Primates)	Rodentia (Rodents)
Family	Aotidae	Echimyidae
Genus	Aotus	Proechimys
Species	Aotus nigriceps	Proechimys decumanus

Evolutionary Relationship

Black-headed Night Monkey and Pacific Spiny-rat share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Black-headed Night Monkey

LC — Least Concern

Pacific Spiny-rat

NT — Near Threatened

Physical Characteristics

Attribute	Black-headed Night Monkey	Pacific Spiny-rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-headed Night Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Pacific Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.