Hourglass Dolphin vs Rough ray

Lagenorhynchus cruciger compared with Raja radula

Key Differences

• Hourglass Dolphin is Least Concern while Rough ray is Endangered.

Taxonomic Classification

Rank	Hourglass Dolphin	Rough ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Cetacea (Whales & Dolphins)	Rajiformes (Rajiformes)
Family	Delphinidae (Oceanic Dolphins)	Rajidae
Genus	Lagenorhynchus	Raja
Species	Lagenorhynchus cruciger	Raja radula

Evolutionary Relationship

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

Conservation Status

Hourglass Dolphin

LC — Least Concern

Rough ray

EN — Endangered

Physical Characteristics

Attribute	Hourglass Dolphin	Rough ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Hourglass Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Rough ray