Bigeye thresher vs nursehound

Alopias pelagicus compared with Scyliorhinus stellaris

Key Differences

• Bigeye thresher is Endangered while nursehound is Not Evaluated.

Taxonomic Classification

Rank	Bigeye thresher	nursehound
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	Scyliorhinus
Species	Alopias pelagicus	Scyliorhinus stellaris

Evolutionary Relationship

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

Conservation Status

Bigeye thresher

EN — Endangered

nursehound

NE — Not Evaluated

Physical Characteristics

Attribute	Bigeye thresher	nursehound
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.

nursehound

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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.