Amazon Black Howler vs Gray-footed Spiny-rat

Alouatta nigerrima compared with Proechimys poliopus

Key Differences

• Amazon Black Howler is Least Concern while Gray-footed Spiny-rat is Vulnerable.

Taxonomic Classification

Rank	Amazon Black Howler	Gray-footed Spiny-rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Primates (Primates)	Rodentia (Rodents)
Family	Atelidae	Echimyidae
Genus	Alouatta	Proechimys
Species	Alouatta nigerrima	Proechimys poliopus

Evolutionary Relationship

Amazon Black Howler and Gray-footed Spiny-rat share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Amazon Black Howler

LC — Least Concern

Gray-footed Spiny-rat

VU — Vulnerable

Physical Characteristics

Attribute	Amazon Black Howler	Gray-footed Spiny-rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazon Black Howler

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Gray-footed Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Venezuela. 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.