Bigeye thresher vs Polynesian Tree Snail

Alopias pelagicus compared with Partula cytherea

Key Differences

• Bigeye thresher is Endangered while Polynesian Tree Snail is Extinct.

Taxonomic Classification

Rank	Bigeye thresher	Polynesian Tree Snail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Chondrichthyes (Cartilaginous Fish)	Gastropoda (Gastropoda)
Order	Lamniformes (Mackerel Sharks)	Stylommatophora (Stylommatophora)
Family	Alopiidae	Partulidae
Genus	Alopias	Partula
Species	Alopias pelagicus	Partula cytherea

Evolutionary Relationship

Bigeye thresher and Polynesian Tree Snail share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Bigeye thresher

EN — Endangered

Polynesian Tree Snail

EX — Extinct

Physical Characteristics

Attribute	Bigeye thresher	Polynesian Tree Snail
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.

Polynesian Tree Snail

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

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.