Bigeye thresher vs Large False Serotine

Alopias pelagicus compared with Hesperoptenus tomesi

Key Differences

• Bigeye thresher is Endangered while Large False Serotine is Vulnerable.

Taxonomic Classification

Rank	Bigeye thresher	Large False Serotine
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Mammalia (Mammals)
Order	Lamniformes (Mackerel Sharks)	Chiroptera (Bats)
Family	Alopiidae	Vespertilionidae
Genus	Alopias	Hesperoptenus
Species	Alopias pelagicus	Hesperoptenus tomesi

Evolutionary Relationship

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

Conservation Status

Bigeye thresher

EN — Endangered

Large False Serotine

VU — Vulnerable

Physical Characteristics

Attribute	Bigeye thresher	Large False Serotine
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.

Large False Serotine

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.