Irrawaddy dolphin vs Speckled ray

Orcaella brevirostris compared with Raja polystigma

Key Differences

• Irrawaddy dolphin is Endangered while Speckled ray is Least Concern.

Taxonomic Classification

Rank	Irrawaddy dolphin	Speckled 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	Orcaella	Raja
Species	Orcaella brevirostris	Raja polystigma

Evolutionary Relationship

Irrawaddy dolphin and Speckled ray share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Irrawaddy dolphin

EN — Endangered

Speckled ray

LC — Least Concern

Physical Characteristics

Attribute	Irrawaddy dolphin	Speckled ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Irrawaddy dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Speckled ray