Andean Chilomys vs Austral ray

Chilomys instans compared with Bathyraja griseocauda

Key Differences

• Andean Chilomys is Least Concern while Austral ray is Endangered.

Taxonomic Classification

Rank	Andean Chilomys	Austral ray
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)	Elasmobranchii
Order	Rodentia (อันดับสัตว์ฟันแทะ)	Rajiformes (อันดับปลาโรนัน)
Family	Cricetidae	Arhynchobatidae
Genus	Chilomys	Bathyraja
Species	Chilomys instans	Bathyraja griseocauda

Evolutionary Relationship

Andean Chilomys and Austral ray share a common ancestor at the Phylum level: Chordata. (สัตว์มีแกนสันหลัง)

Conservation Status

Andean Chilomys

LC — Least Concern

Austral ray

EN — Endangered

Physical Characteristics

Attribute	Andean Chilomys	Austral ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Andean Chilomys

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

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.

Andean Chilomys

The Andean Chilomys (Chilomys instans) is a species in the genus Chilomys. It is currently classified as Least Concern on the IUCN Red List. 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.