Amazon Black Howler vs Triangle-marked Roller

Alouatta nigerrima compared with Ancylis achatana

Key Differences

• Amazon Black Howler is Least Concern while Triangle-marked Roller is Vulnerable.

Taxonomic Classification

Rank	Amazon Black Howler	Triangle-marked Roller
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Primates (Primates)	Lepidoptera (Butterflies & Moths)
Family	Atelidae	Tortricidae
Genus	Alouatta	Ancylis
Species	Alouatta nigerrima	Ancylis achatana

Evolutionary Relationship

Amazon Black Howler and Triangle-marked Roller share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Amazon Black Howler

LC — Least Concern

Triangle-marked Roller

VU — Vulnerable

Physical Characteristics

Attribute	Amazon Black Howler	Triangle-marked Roller
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazon Black Howler

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Triangle-marked Roller

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Currently classified as Vulnerable 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.