Austral ray vs Humboldt's Squirrel Monkey

Bathyraja griseocauda compared with Saimiri cassiquiarensis

Key Differences

• Austral ray is Endangered while Humboldt's Squirrel Monkey is Near Threatened.

Taxonomic Classification

Rank	Austral ray	Humboldt's Squirrel Monkey
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Rajiformes (Rajiformes)	Primates (Primates)
Family	Arhynchobatidae	Cebidae
Genus	Bathyraja	Saimiri
Species	Bathyraja griseocauda	Saimiri cassiquiarensis

Evolutionary Relationship

Austral ray and Humboldt's Squirrel Monkey share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Austral ray

EN — Endangered

Humboldt's Squirrel Monkey

NT — Near Threatened

Physical Characteristics

Attribute	Austral ray	Humboldt's Squirrel Monkey
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Austral ray

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 Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Humboldt's Squirrel Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Austral ray

The Austral ray (Bathyraja griseocauda) is a species in the genus Bathyraja. It is currently classified as Endangered on the IUCN Red List. 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.