Black Howler Monkey vs Smooth hound

Alouatta pigra compared with Triakis maculata

Key Differences

• Black Howler Monkey is Endangered while Smooth hound is Critically Endangered.

Taxonomic Classification

Rank	Black Howler Monkey	Smooth hound
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Chondrichthyes (Cartilaginous Fish)
Order	Primates (Primates)	Carcharhiniformes (Ground Sharks)
Family	Atelidae	Triakidae
Genus	Alouatta	Triakis
Species	Alouatta pigra	Triakis maculata

Evolutionary Relationship

Black Howler Monkey and Smooth hound share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Black Howler Monkey

EN — Endangered

Smooth hound

CR — Critically Endangered

Physical Characteristics

Attribute	Black Howler Monkey	Smooth hound
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Howler Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Smooth hound

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate grasslands and steppes, and montane grasslands and shrublands, among 5 distinct biome types within the Neotropic biogeographic realm.

Range

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

Black Howler Monkey

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