Irrawaddy dolphin vs Spotted Ray

Orcaella brevirostris compared with Bathyraja albomaculata

Key Differences

• Irrawaddy dolphin is Endangered while Spotted Ray is Vulnerable.

Taxonomic Classification

Rank	Irrawaddy dolphin	Spotted 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	Orcaella	Bathyraja
Species	Orcaella brevirostris	Bathyraja albomaculata

Evolutionary Relationship

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

Conservation Status

Irrawaddy dolphin

EN — Endangered

Spotted Ray

VU — Vulnerable

Physical Characteristics

Attribute	Irrawaddy dolphin	Spotted Ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Irrawaddy dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Spotted Ray

Habitat

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

Range

Found in Chile. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.