Northern Right Whale Dolphin vs Ray

Lissodelphis borealis compared with Atlantoraja castelnaui

Key Differences

• Northern Right Whale Dolphin is Least Concern while Ray is Critically Endangered.

Taxonomic Classification

Rank	Northern Right Whale Dolphin	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)	Arhynchobatidae
Genus	Lissodelphis	Atlantoraja
Species	Lissodelphis borealis	Atlantoraja castelnaui

Evolutionary Relationship

Northern Right Whale Dolphin and Ray share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Northern Right Whale Dolphin

LC — Least Concern

Ray

CR — Critically Endangered

Physical Characteristics

Attribute	Northern Right Whale Dolphin	Ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Northern Right Whale Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Ray