Bigeye Numbfish vs Bigeye thresher

Narcine oculifera compared with Alopias pelagicus

Key Differences

• Bigeye Numbfish is Data Deficient while Bigeye thresher is Endangered.

Taxonomic Classification

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

Evolutionary Relationship

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

Conservation Status

Bigeye Numbfish

DD — Data Deficient

Bigeye thresher

EN — Endangered

Physical Characteristics

Attribute	Bigeye Numbfish	Bigeye thresher
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bigeye Numbfish

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.

Bigeye Numbfish

The Bigeye Numbfish (Narcine oculifera) is a species in the genus Narcine.

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.