Black-headed Night Monkey vs Round Ray

Aotus nigriceps compared with Rajella fyllae

Key Differences

• Black-headed Night Monkey is Least Concern while Round Ray is Not Evaluated.

Taxonomic Classification

Rank	Black-headed Night Monkey	Round Ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Primates (Primates)	Rajiformes (Rajiformes)
Family	Aotidae	Rajidae
Genus	Aotus	Rajella
Species	Aotus nigriceps	Rajella fyllae

Evolutionary Relationship

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

Conservation Status

Black-headed Night Monkey

LC — Least Concern

Round Ray

NE — Not Evaluated

Physical Characteristics

Attribute	Black-headed Night Monkey	Round Ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-headed Night Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Round Ray

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

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.