Amazon Black Howler vs black-headed spider monkey

Alouatta nigerrima compared with Ateles fusciceps

Key Differences

• Amazon Black Howler is Least Concern while black-headed spider monkey is Endangered.

Taxonomic Classification

Rank	Amazon Black Howler	black-headed spider monkey
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order same	Primates (Primates)	Primates (Primates)
Family same	Atelidae	Atelidae
Genus	Alouatta	Ateles
Species	Alouatta nigerrima	Ateles fusciceps

Evolutionary Relationship

Amazon Black Howler and black-headed spider monkey share a common ancestor at the Family level: Atelidae.

Conservation Status

Amazon Black Howler

LC — Least Concern

black-headed spider monkey

EN — Endangered

Physical Characteristics

Attribute	Amazon Black Howler	black-headed spider monkey
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazon Black Howler

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

black-headed spider monkey

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 4 distinct biome types within the Neotropic biogeographic realm.

Range

Distributed across Colombia and Ecuador. 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.

black-headed spider monkey

The Black-Headed Spider Monkey (Ateles fusciceps) is a species in the genus Ateles. It is currently classified as Endangered on the IUCN Red List. Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 4 distinct biome types within the Neotropic biogeographic realm.