Black-headed Night Monkey vs Chilean devil ray

Aotus nigriceps compared with Mobula tarapacana

Key Differences

• Black-headed Night Monkey is Least Concern while Chilean devil ray is Endangered.

Taxonomic Classification

Rank	Black-headed Night Monkey	Chilean devil ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Primates (Primates)	Myliobatiformes (Myliobatiformes)
Family	Aotidae	Myliobatidae
Genus	Aotus	Mobula
Species	Aotus nigriceps	Mobula tarapacana

Evolutionary Relationship

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

Conservation Status

Black-headed Night Monkey

LC — Least Concern

Chilean devil ray

EN — Endangered

Physical Characteristics

Attribute	Black-headed Night Monkey	Chilean devil ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-headed Night Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Chilean devil ray

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate grasslands and steppes, and montane grasslands and shrublands, among 5 distinct biome types within the Neotropic biogeographic realm.

Range

Distributed across Chile, Colombia, Portugal, Taiwan, and Venezuela. 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.

Chilean devil ray

The Chilean devil ray (Mobula tarapacana) is a species in the genus Mobula. It is currently classified as Endangered on the IUCN Red List. Found across multiple habitat types including temperate broadleaf and mixed forests, temperate grasslands and steppes, and montane grasslands and shrublands, among 5 distinct biome types within the Neotropic biogeographic realm.