Austral ray vs Birch Marble

Bathyraja griseocauda compared with Apotomis betuletana

Key Differences

• Austral ray is Endangered while Birch Marble is Least Concern.

Taxonomic Classification

Rank	Austral ray	Birch Marble
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Elasmobranchii	Insecta (Insects)
Order	Rajiformes (Rajiformes)	Lepidoptera (Butterflies & Moths)
Family	Arhynchobatidae	Tortricidae
Genus	Bathyraja	Apotomis
Species	Bathyraja griseocauda	Apotomis betuletana

Evolutionary Relationship

Austral ray and Birch Marble share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Austral ray

EN — Endangered

Birch Marble

LC — Least Concern

Physical Characteristics

Attribute	Austral ray	Birch Marble
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.

Birch Marble

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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.

Birch Marble

The Birch Marble (Apotomis betuletana) is a species in the genus Apotomis. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.