Amazon Black Howler vs undulate ray

Alouatta nigerrima compared with Raja undulata

Key Differences

• Amazon Black Howler is Least Concern while undulate ray is Endangered.

Taxonomic Classification

Rank	Amazon Black Howler	undulate ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Primates (Primates)	Rajiformes (Rajiformes)
Family	Atelidae	Rajidae
Genus	Alouatta	Raja
Species	Alouatta nigerrima	Raja undulata

Evolutionary Relationship

Amazon Black Howler and undulate ray share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Amazon Black Howler

LC — Least Concern

undulate ray

EN — Endangered

Physical Characteristics

Attribute	Amazon Black Howler	undulate ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazon Black Howler

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

undulate ray

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Found in Belgium. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Amazon Black Howler

The Amazon Black Howler (Alouatta nigerrima) is a species in the genus Alouatta. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.