Austral ray vs Caatinga-Vespermaus

Bathyraja griseocauda compared with Calomys expulsus

Key Differences

• Austral ray is Endangered while Caatinga-Vespermaus is Least Concern.

Taxonomic Classification

Rank	Austral ray	Caatinga-Vespermaus
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Elasmobranchii	Mammalia (Säugetiere)
Order	Rajiformes (Rajiformes)	Rodentia (Nagetiere)
Family	Arhynchobatidae	Cricetidae
Genus	Bathyraja	Calomys
Species	Bathyraja griseocauda	Calomys expulsus

Evolutionary Relationship

Austral ray and Caatinga-Vespermaus share a common ancestor at the Phylum level: Chordata. (Chordatiere)

Conservation Status

Austral ray

EN — Endangered

Caatinga-Vespermaus

LC — Least Concern

Physical Characteristics

Attribute	Austral ray	Caatinga-Vespermaus
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.

Caatinga-Vespermaus

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.

Caatinga-Vespermaus

The Caatinga laucha (Calomys expulsus) is a species in the genus Calomys. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.