Bigeye thresher vs long-armed squid

Alopias pelagicus compared with Chiroteuthis veranii

Key Differences

• Bigeye thresher is Endangered while long-armed squid is Least Concern.

Taxonomic Classification

Rank	Bigeye thresher	long-armed squid
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Chondrichthyes (Cartilaginous Fish)	Cephalopoda (Cephalopods)
Order	Lamniformes (Mackerel Sharks)	Oegopsida (Oegopsida)
Family	Alopiidae	Chiroteuthidae
Genus	Alopias	Chiroteuthis
Species	Alopias pelagicus	Chiroteuthis veranii

Evolutionary Relationship

Bigeye thresher and long-armed squid share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Bigeye thresher

EN — Endangered

long-armed squid

LC — Least Concern

Physical Characteristics

Attribute	Bigeye thresher	long-armed squid
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.

long-armed squid

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

Found in Chile.

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.