Austral ray vs Dusky Dolphin

Bathyraja griseocauda compared with Lagenorhynchus obscurus

Key Differences

• Austral ray is Endangered while Dusky Dolphin is Least Concern.

Taxonomic Classification

Rank	Austral ray	Dusky Dolphin
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Rajiformes (Rajiformes)	Cetacea (Whales & Dolphins)
Family	Arhynchobatidae	Delphinidae (Oceanic Dolphins)
Genus	Bathyraja	Lagenorhynchus
Species	Bathyraja griseocauda	Lagenorhynchus obscurus

Evolutionary Relationship

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

Conservation Status

Austral ray

EN — Endangered

Dusky Dolphin

LC — Least Concern

Physical Characteristics

Attribute	Austral ray	Dusky Dolphin
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.

Dusky Dolphin

Habitat

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.