Bigeye thresher vs Spiny Bollworm

Alopias pelagicus compared with Earias biplaga

Key Differences

• Bigeye thresher is Endangered while Spiny Bollworm is Not Evaluated.

Taxonomic Classification

Rank	Bigeye thresher	Spiny Bollworm
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Chondrichthyes (Cartilaginous Fish)	Insecta (Insects)
Order	Lamniformes (Mackerel Sharks)	Lepidoptera (Butterflies & Moths)
Family	Alopiidae	Nolidae
Genus	Alopias	Earias
Species	Alopias pelagicus	Earias biplaga

Evolutionary Relationship

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

Conservation Status

Bigeye thresher

EN — Endangered

Spiny Bollworm

NE — Not Evaluated

Physical Characteristics

Attribute	Bigeye thresher	Spiny Bollworm
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.

Spiny Bollworm

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Widely distributed across Africa (9 countries), Asia (Yemen), and Europe (5 countries).

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.