Bigeye thresher vs Dog fish

Alopias pelagicus compared with Haploblepharus edwardsii

Taxonomic Classification

Rank	Bigeye thresher	Dog fish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Chondrichthyes (Cartilaginous Fish)	Chondrichthyes (Cartilaginous Fish)
Order	Lamniformes (Mackerel Sharks)	Carcharhiniformes (Ground Sharks)
Family	Alopiidae	Scyliorhinidae
Genus	Alopias	Haploblepharus
Species	Alopias pelagicus	Haploblepharus edwardsii

Evolutionary Relationship

Bigeye thresher and Dog fish share a common ancestor at the Class level: Chondrichthyes. (Cartilaginous Fish)

Conservation Status

Bigeye thresher

EN — Endangered

Dog fish

EN — Endangered

Physical Characteristics

Attribute	Bigeye thresher	Dog fish
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.

Dog fish

Habitat

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

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.