Joined-fins skate vs Spinetail ray

Bathyraja cousseauae compared with Bathyraja spinicauda

Key Differences

• Joined-fins skate is Least Concern while Spinetail ray is Near Threatened.

Taxonomic Classification

Rank	Joined-fins skate	Spinetail ray
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum same	Chordata (척삭동물)	Chordata (척삭동물)
Class same	Elasmobranchii	Elasmobranchii
Order same	Rajiformes (홍어목)	Rajiformes (홍어목)
Family same	Arhynchobatidae	Arhynchobatidae
Genus same	Bathyraja	Bathyraja
Species	Bathyraja cousseauae	Bathyraja spinicauda

Evolutionary Relationship

Joined-fins skate and Spinetail ray share a common ancestor at the Genus level: Bathyraja.

Conservation Status

Joined-fins skate

LC — Least Concern

Spinetail ray

NT — Near Threatened

Physical Characteristics

Attribute	Joined-fins skate	Spinetail ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Joined-fins skate

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

Found in Chile.

Spinetail ray

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Found in Norway. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.