Atlantic Smooth Dogfish vs Bigeye thresher

Mustelus canis compared with Alopias pelagicus

Key Differences

• Atlantic Smooth Dogfish is Near Threatened while Bigeye thresher is Endangered.

Taxonomic Classification

Rank	Atlantic Smooth Dogfish	Bigeye thresher
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Chondrichthyes (Cartilaginous Fish)	Chondrichthyes (Cartilaginous Fish)
Order	Carcharhiniformes (Ground Sharks)	Lamniformes (Mackerel Sharks)
Family	Triakidae	Alopiidae
Genus	Mustelus	Alopias
Species	Mustelus canis	Alopias pelagicus

Evolutionary Relationship

Atlantic Smooth Dogfish and Bigeye thresher share a common ancestor at the Class level: Chondrichthyes. (Cartilaginous Fish)

Conservation Status

Atlantic Smooth Dogfish

NT — Near Threatened

Bigeye thresher

EN — Endangered

Physical Characteristics

Attribute	Atlantic Smooth Dogfish	Bigeye thresher
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Atlantic Smooth Dogfish

Habitat

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

Range

Found in Venezuela. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Atlantic Smooth Dogfish

The Atlantic Smooth Dogfish (Mustelus canis) is a species in the genus Mustelus. It is currently classified as Near Threatened on the IUCN Red List. 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.