Bigeye thresher vs Durham slug

Alopias pelagicus compared with Arion flagellus

Key Differences

• Bigeye thresher is Endangered while Durham slug is Least Concern.

Taxonomic Classification

Rank	Bigeye thresher	Durham slug
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	Arionidae
Genus	Alopias	Arion
Species	Alopias pelagicus	Arion flagellus

Evolutionary Relationship

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

Conservation Status

Bigeye thresher

EN — Endangered

Durham slug

LC — Least Concern

Physical Characteristics

Attribute	Bigeye thresher	Durham slug
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.

Durham slug

Habitat

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

Range

Found across Africa (South Africa) and Europe (6 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.