Amazonian Oryzomys vs Austral ray

Hylaeamys yunganus compared with Bathyraja griseocauda

Key Differences

• Amazonian Oryzomys is Least Concern while Austral ray is Endangered.

Taxonomic Classification

Rank	Amazonian Oryzomys	Austral ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Rodentia (Rodents)	Rajiformes (Rajiformes)
Family	Cricetidae	Arhynchobatidae
Genus	Hylaeamys	Bathyraja
Species	Hylaeamys yunganus	Bathyraja griseocauda

Evolutionary Relationship

Amazonian Oryzomys and Austral ray share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Amazonian Oryzomys

LC — Least Concern

Austral ray

EN — Endangered

Physical Characteristics

Attribute	Amazonian Oryzomys	Austral ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazonian Oryzomys

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.

Amazonian Oryzomys

The Amazonian Oryzomys (Hylaeamys yunganus) is a species in the genus Hylaeamys. 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.