Douroucouli a bras gris vs small rivulet

Aotus griseimembra compared with Perizoma alchemillata

Key Differences

• Douroucouli a bras gris is Vulnerable while small rivulet is Least Concern.

Taxonomic Classification

Rank	Douroucouli a bras gris	small rivulet
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Primates (Primates)	Lepidoptera (Butterflies & Moths)
Family	Aotidae	Geometridae
Genus	Aotus	Perizoma
Species	Aotus griseimembra	Perizoma alchemillata

Evolutionary Relationship

Douroucouli a bras gris and small rivulet share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Douroucouli a bras gris

VU — Vulnerable

small rivulet

LC — Least Concern

Physical Characteristics

Attribute	Douroucouli a bras gris	small rivulet
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Douroucouli a bras gris

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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

small rivulet

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States.