Atlantic Dolphin vs Chilean Hagfish

Delphinus delphis compared with Eptatretus polytrema

Key Differences

• Atlantic Dolphin is Least Concern while Chilean Hagfish is Data Deficient.

Taxonomic Classification

Rank	Atlantic Dolphin	Chilean Hagfish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Myxini (Myxini)
Order	Cetacea (Whales & Dolphins)	Myxiniformes (Myxiniformes)
Family	Delphinidae (Oceanic Dolphins)	Myxinidae
Genus	Delphinus	Eptatretus
Species	Delphinus delphis	Eptatretus polytrema

Evolutionary Relationship

Atlantic Dolphin and Chilean Hagfish share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Atlantic Dolphin

LC — Least Concern

Chilean Hagfish

DD — Data Deficient

Physical Characteristics

Attribute	Atlantic Dolphin	Chilean Hagfish
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Atlantic Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), and South America (Colombia, Ecuador, Venezuela).

Chilean Hagfish

Habitat

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

Range

Found in Chile.

Atlantic Dolphin

Atlantic Dolphin (Delphinus delphis) 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.

Chilean Hagfish

The Chilean Hagfish (Eptatretus polytrema) is a species in the genus Eptatretus. It is currently classified as Data Deficient on the IUCN Red List. Native to South America, inhabiting ecosystems characteristic of the region.