Bigeye thresher vs Rough-Tailed

Alopias pelagicus compared with Bathytoshia centroura

Key Differences

• Bigeye thresher is Endangered while Rough-Tailed is Vulnerable.

Taxonomic Classification

Rank	Bigeye thresher	Rough-Tailed
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Elasmobranchii
Order	Lamniformes (Mackerel Sharks)	Myliobatiformes (Myliobatiformes)
Family	Alopiidae	Dasyatidae
Genus	Alopias	Bathytoshia
Species	Alopias pelagicus	Bathytoshia centroura

Evolutionary Relationship

Bigeye thresher and Rough-Tailed share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Bigeye thresher

EN — Endangered

Rough-Tailed

VU — Vulnerable

Physical Characteristics

Attribute	Bigeye thresher	Rough-Tailed
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.

Rough-Tailed

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.