Amazon Black Howler vs violet risso

Alouatta nigerrima compared with Rissoa violacea

Key Differences

• Amazon Black Howler is Least Concern while violet risso is Not Evaluated.

Taxonomic Classification

Rank	Amazon Black Howler	violet risso
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Gastropoda (Gastropoda)
Order	Primates (Primates)	Littorinimorpha (Littorinimorpha)
Family	Atelidae	Rissoidae
Genus	Alouatta	Rissoa
Species	Alouatta nigerrima	Rissoa violacea

Evolutionary Relationship

Amazon Black Howler and violet risso share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Amazon Black Howler

LC — Least Concern

violet risso

NE — Not Evaluated

Physical Characteristics

Attribute	Amazon Black Howler	violet risso
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazon Black Howler

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

violet risso

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Distributed across Denmark and Norway.

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.