Austral ray vs Gray-bellied Rice Rat

Bathyraja griseocauda compared with Nephelomys moerex

Key Differences

• Austral ray is Endangered while Gray-bellied Rice Rat is Extinct.

Taxonomic Classification

Rank	Austral ray	Gray-bellied Rice Rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Rajiformes (Rajiformes)	Rodentia (Rodents)
Family	Arhynchobatidae	Cricetidae
Genus	Bathyraja	Nephelomys
Species	Bathyraja griseocauda	Nephelomys moerex

Evolutionary Relationship

Austral ray and Gray-bellied Rice Rat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Austral ray

EN — Endangered

Gray-bellied Rice Rat

EX — Extinct

Physical Characteristics

Attribute	Austral ray	Gray-bellied Rice Rat
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-bellied Rice Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador.

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.