Bigeye thresher vs Slender lungfish

Alopias pelagicus compared with Protopterus dolloi

Key Differences

• Bigeye thresher is Endangered while Slender lungfish is Least Concern.

Taxonomic Classification

Rank	Bigeye thresher	Slender lungfish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Dipneusti (Dipneusti)
Order	Lamniformes (Mackerel Sharks)	Ceratodontiformes (Ceratodontiformes)
Family	Alopiidae	Protopteridae
Genus	Alopias	Protopterus
Species	Alopias pelagicus	Protopterus dolloi

Evolutionary Relationship

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

Conservation Status

Bigeye thresher

EN — Endangered

Slender lungfish

LC — Least Concern

Physical Characteristics

Attribute	Bigeye thresher	Slender lungfish
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.

Slender lungfish

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.