Isuno-kasube vs Austral ray

Bathyraja parmifera compared with Bathyraja griseocauda

Key Differences

• Isuno-kasube is Least Concern while Austral ray is Endangered.

Taxonomic Classification

Rank	Isuno-kasube	Austral ray
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Elasmobranchii	Elasmobranchii
Order same	Rajiformes (ガンギエイ目)	Rajiformes (ガンギエイ目)
Family same	Arhynchobatidae	Arhynchobatidae
Genus same	Bathyraja	Bathyraja
Species	Bathyraja parmifera	Bathyraja griseocauda

Evolutionary Relationship

Isuno-kasube and Austral ray share a common ancestor at the Genus level: Bathyraja.

Conservation Status

Isuno-kasube

LC — Least Concern

Austral ray

EN — Endangered

Physical Characteristics

Attribute	Isuno-kasube	Austral ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Isuno-kasube

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.

Isuno-kasube

The Alaska skate (Bathyraja parmifera) is a species in the genus Bathyraja. It is currently classified as Least Concern on the IUCN Red List.

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.