Blue Dolphin vs Marbled Ghostshark

Stenella coeruleoalba compared with Hydrolagus marmoratus

Taxonomic Classification

Rank	Blue Dolphin	Marbled Ghostshark
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Holocephali (Holocephali)
Order	Cetacea (Whales & Dolphins)	Chimaeriformes (Chimaeriformes)
Family	Delphinidae (Oceanic Dolphins)	Chimaeridae
Genus	Stenella	Hydrolagus
Species	Stenella coeruleoalba	Hydrolagus marmoratus

Evolutionary Relationship

Blue Dolphin and Marbled Ghostshark share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Blue Dolphin

LC — Least Concern

Marbled Ghostshark

LC — Least Concern

Physical Characteristics

Attribute	Blue Dolphin	Marbled Ghostshark
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).

Marbled Ghostshark

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.