Bigeye thresher vs robust bobtail

Alopias pelagicus compared with Sepiola robusta

Key Differences

• Bigeye thresher is Endangered while robust bobtail is Data Deficient.

Taxonomic Classification

Rank	Bigeye thresher	robust bobtail
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	Sepiolidae
Genus	Alopias	Sepiola
Species	Alopias pelagicus	Sepiola robusta

Evolutionary Relationship

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

Conservation Status

Bigeye thresher

EN — Endangered

robust bobtail

DD — Data Deficient

Physical Characteristics

Attribute	Bigeye thresher	robust bobtail
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.

robust bobtail

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.