Austral ray vs Namdapha Flying Squirrel

Bathyraja griseocauda compared with Biswamoyopterus biswasi

Key Differences

• Austral ray is Endangered while Namdapha Flying Squirrel is Critically Endangered.

Taxonomic Classification

Rank	Austral ray	Namdapha Flying Squirrel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Rajiformes (Rajiformes)	Rodentia (Rodents)
Family	Arhynchobatidae	Sciuridae (Squirrels)
Genus	Bathyraja	Biswamoyopterus
Species	Bathyraja griseocauda	Biswamoyopterus biswasi

Evolutionary Relationship

Austral ray and Namdapha Flying Squirrel share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Austral ray

EN — Endangered

Namdapha Flying Squirrel

CR — Critically Endangered

Physical Characteristics

Attribute	Austral ray	Namdapha Flying Squirrel
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.

Namdapha Flying Squirrel

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.