Bigeye thresher vs Halberd shark

Alopias pelagicus compared with Pristiophorus japonicus

Key Differences

• Bigeye thresher is Endangered while Halberd shark is Least Concern.

Taxonomic Classification

Rank	Bigeye thresher	Halberd shark
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Elasmobranchii
Order	Lamniformes (Mackerel Sharks)	Pristiophoriformes (Pristiophoriformes)
Family	Alopiidae	Pristiophoridae
Genus	Alopias	Pristiophorus
Species	Alopias pelagicus	Pristiophorus japonicus

Evolutionary Relationship

Bigeye thresher and Halberd shark share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Bigeye thresher

EN — Endangered

Halberd shark

LC — Least Concern

Physical Characteristics

Attribute	Bigeye thresher	Halberd shark
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.

Halberd shark

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan.

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.

Shared Countries

Both species can be found in 1 countries:

🇹🇼 Taiwan