Austral ray vs Gray Birch Mouse

Bathyraja griseocauda compared with Sicista pseudonapaea

Key Differences

• Austral ray is Endangered while Gray Birch Mouse is Data Deficient.

Taxonomic Classification

Rank	Austral ray	Gray Birch Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Rajiformes (Rajiformes)	Rodentia (Rodents)
Family	Arhynchobatidae	Dipodidae
Genus	Bathyraja	Sicista
Species	Bathyraja griseocauda	Sicista pseudonapaea

Evolutionary Relationship

Austral ray and Gray Birch Mouse share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Austral ray

EN — Endangered

Gray Birch Mouse

DD — Data Deficient

Physical Characteristics

Attribute	Austral ray	Gray Birch Mouse
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.

Gray Birch Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.