Bigeye thresher vs Broadback cuttlefish

Alopias pelagicus compared with Sepia savignyi

Key Differences

• Bigeye thresher is Endangered while Broadback cuttlefish is Data Deficient.

Taxonomic Classification

Rank	Bigeye thresher	Broadback cuttlefish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Chondrichthyes (Cartilaginous Fish)	Cephalopoda (Cephalopods)
Order	Lamniformes (Mackerel Sharks)	Sepiida (Sepiida)
Family	Alopiidae	Sepiidae
Genus	Alopias	Sepia
Species	Alopias pelagicus	Sepia savignyi

Evolutionary Relationship

Bigeye thresher and Broadback cuttlefish share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Bigeye thresher

EN — Endangered

Broadback cuttlefish

DD — Data Deficient

Physical Characteristics

Attribute	Bigeye thresher	Broadback cuttlefish
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.

Broadback cuttlefish

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.

Broadback cuttlefish

The Broadback cuttlefish (Sepia savignyi) is a species in the genus Sepia. It is currently classified as Data Deficient on the IUCN Red List.