Irrawaddy dolphin vs Ray

Orcaella brevirostris compared with Sympterygia bonapartii

Key Differences

• Irrawaddy dolphin is Endangered while Ray is Near Threatened.

Taxonomic Classification

Rank	Irrawaddy 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	Orcaella	Sympterygia
Species	Orcaella brevirostris	Sympterygia bonapartii

Evolutionary Relationship

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

Conservation Status

Irrawaddy dolphin

EN — Endangered

Ray

NT — Near Threatened

Physical Characteristics

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

Habitat & Geographic Range

Irrawaddy dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Ray

Habitat

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

Range

Found in Chile. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.