Dwarf round ray vs Irrawaddy dolphin

Urotrygon nana compared with Orcaella brevirostris

Key Differences

• Dwarf round ray is Near Threatened while Irrawaddy dolphin is Endangered.

Taxonomic Classification

Rank	Dwarf round ray	Irrawaddy dolphin
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Myliobatiformes (Myliobatiformes)	Cetacea (Whales & Dolphins)
Family	Urotrygonidae	Delphinidae (Oceanic Dolphins)
Genus	Urotrygon	Orcaella
Species	Urotrygon nana	Orcaella brevirostris

Evolutionary Relationship

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

Conservation Status

Dwarf round ray

NT — Near Threatened

Irrawaddy dolphin

EN — Endangered

Physical Characteristics

Attribute	Dwarf round ray	Irrawaddy dolphin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dwarf round ray

Irrawaddy dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.