Bigeye thresher vs Surprise Thorius

Alopias pelagicus compared with Thorius insperatus

Key Differences

• Bigeye thresher is Endangered while Surprise Thorius is Critically Endangered.

Taxonomic Classification

Rank	Bigeye thresher	Surprise Thorius
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Amphibia (Amphibians)
Order	Lamniformes (Mackerel Sharks)	Caudata (Caudata)
Family	Alopiidae	Plethodontidae
Genus	Alopias	Thorius
Species	Alopias pelagicus	Thorius insperatus

Evolutionary Relationship

Bigeye thresher and Surprise Thorius share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Bigeye thresher

EN — Endangered

Surprise Thorius

CR — Critically Endangered

Physical Characteristics

Attribute	Bigeye thresher	Surprise Thorius
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.

Surprise Thorius

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Found in Mexico. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.