Big eye thresher shark vs Blind Eel

Alopias superciliosus compared with Eptatretus cirrhatus

Key Differences

• Big eye thresher shark is Vulnerable while Blind Eel is Least Concern.

Taxonomic Classification

Rank	Big eye thresher shark	Blind Eel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Myxini (Myxini)
Order	Lamniformes (Mackerel Sharks)	Myxiniformes (Myxiniformes)
Family	Alopiidae	Myxinidae
Genus	Alopias	Eptatretus
Species	Alopias superciliosus	Eptatretus cirrhatus

Evolutionary Relationship

Big eye thresher shark and Blind Eel share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Big eye thresher shark

VU — Vulnerable

Blind Eel

LC — Least Concern

Physical Characteristics

Attribute	Big eye thresher shark	Blind Eel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big eye thresher shark

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

Distributed across Chile, Colombia, Portugal, Taiwan, and Venezuela. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Blind Eel

Big eye thresher shark

The Big eye thresher shark (Alopias superciliosus) is a species in the genus Alopias. It is currently classified as Vulnerable on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

Blind Eel

The Blind Eel (Eptatretus cirrhatus) is a species in the genus Eptatretus. It is currently classified as Least Concern on the IUCN Red List.