Amazon Black Howler vs Medusa Brittlestem

Alouatta nigerrima compared with Psathyrella caput-medusae

Key Differences

• Amazon Black Howler is Least Concern while Medusa Brittlestem is Endangered.

Taxonomic Classification

Rank	Amazon Black Howler	Medusa Brittlestem
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Basidiomycota (Club Fungi)
Class	Mammalia (Mammals)	Agaricomycetes (Mushrooms)
Order	Primates (Primates)	Agaricales (Gilled Mushrooms)
Family	Atelidae	Psathyrellaceae
Genus	Alouatta	Psathyrella
Species	Alouatta nigerrima	Psathyrella caput-medusae

Conservation Status

Amazon Black Howler

LC — Least Concern

Medusa Brittlestem

EN — Endangered

Physical Characteristics

Attribute	Amazon Black Howler	Medusa Brittlestem
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazon Black Howler

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Medusa Brittlestem

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Denmark, Norway, and Sweden. 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.