Bigeye thresher vs Leopard Numbfish

Alopias pelagicus compared with Narcine leoparda

Key Differences

• Bigeye thresher is Endangered while Leopard Numbfish is Vulnerable.

Taxonomic Classification

Rank	Bigeye thresher	Leopard Numbfish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Elasmobranchii
Order	Lamniformes (Mackerel Sharks)	Torpediniformes (electric ray)
Family	Alopiidae	Narcinidae
Genus	Alopias	Narcine
Species	Alopias pelagicus	Narcine leoparda

Evolutionary Relationship

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

Conservation Status

Bigeye thresher

EN — Endangered

Leopard Numbfish

VU — Vulnerable

Physical Characteristics

Attribute	Bigeye thresher	Leopard Numbfish
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.

Leopard Numbfish

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.