Blue Dolphin vs Round-spotted Major

Stenella coeruleoalba compared with Oxycera dives

Key Differences

• Blue Dolphin is Least Concern while Round-spotted Major is Not Evaluated.

Taxonomic Classification

Rank	Blue Dolphin	Round-spotted Major
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Cetacea (Whales & Dolphins)	Diptera (Diptera)
Family	Delphinidae (Oceanic Dolphins)	Stratiomyidae
Genus	Stenella	Oxycera
Species	Stenella coeruleoalba	Oxycera dives

Evolutionary Relationship

Blue Dolphin and Round-spotted Major share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Blue Dolphin

LC — Least Concern

Round-spotted Major

NE — Not Evaluated

Physical Characteristics

Attribute	Blue Dolphin	Round-spotted Major
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blue Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and South America (Colombia, Ecuador, Venezuela).

Round-spotted Major

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Norway and Sweden.

Blue Dolphin

Blue Dolphin (Stenella coeruleoalba) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden