Big eye thresher shark vs Circular Ear Shell

Alopias superciliosus compared with Haliotis cyclobates

Key Differences

• Big eye thresher shark is Vulnerable while Circular Ear Shell is Least Concern.

Taxonomic Classification

Rank	Big eye thresher shark	Circular Ear Shell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Chondrichthyes (Cartilaginous Fish)	Gastropoda (Gastropoda)
Order	Lamniformes (Mackerel Sharks)	Lepetellida (Lepetellida)
Family	Alopiidae	Haliotidae
Genus	Alopias	Haliotis
Species	Alopias superciliosus	Haliotis cyclobates

Evolutionary Relationship

Big eye thresher shark and Circular Ear Shell share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Big eye thresher shark

VU — Vulnerable

Circular Ear Shell

LC — Least Concern

Physical Characteristics

Attribute	Big eye thresher shark	Circular Ear Shell
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.

Circular Ear Shell

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

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.

Circular Ear Shell

The Circular Ear Shell (Haliotis cyclobates) is a species in the genus Haliotis. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.