Bigeye thresher vs Square-spot Bell

Alopias pelagicus compared with Notocelia tetragonana

Key Differences

• Bigeye thresher is Endangered while Square-spot Bell is Vulnerable.

Taxonomic Classification

Rank	Bigeye thresher	Square-spot Bell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Chondrichthyes (Cartilaginous Fish)	Insecta (Insects)
Order	Lamniformes (Mackerel Sharks)	Lepidoptera (Butterflies & Moths)
Family	Alopiidae	Tortricidae
Genus	Alopias	Notocelia
Species	Alopias pelagicus	Notocelia tetragonana

Evolutionary Relationship

Bigeye thresher and Square-spot Bell share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Bigeye thresher

EN — Endangered

Square-spot Bell

VU — Vulnerable

Physical Characteristics

Attribute	Bigeye thresher	Square-spot Bell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bigeye thresher

Habitat

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

Range

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

Square-spot Bell

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Norway, and Sweden. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Bigeye thresher

The Bigeye thresher (Alopias pelagicus) is a species in the genus Alopias. It is currently classified as Endangered on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.