Bigeye thresher vs Brazier's Ear Shell

Alopias pelagicus compared with Haliotis brazieri

Key Differences

• Bigeye thresher is Endangered while Brazier's Ear Shell is Near Threatened.

Taxonomic Classification

Rank	Bigeye thresher	Brazier's Ear Shell
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum	Chordata (Chordatiere)	Mollusca (Weichtiere)
Class	Chondrichthyes (Knorpelfische)	Gastropoda (Schnecken)
Order	Lamniformes (Makrelenhaiartige)	Lepetellida (Lepetellida)
Family	Alopiidae	Haliotidae
Genus	Alopias	Haliotis
Species	Alopias pelagicus	Haliotis brazieri

Evolutionary Relationship

Bigeye thresher and Brazier's Ear Shell share a common ancestor at the Kingdom level: Animalia. (Tier)

Conservation Status

Bigeye thresher

EN — Endangered

Brazier's Ear Shell

NT — Near Threatened

Physical Characteristics

Attribute	Bigeye thresher	Brazier's Ear Shell
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.

Brazier's Ear Shell

Habitat

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

Range

Found in Australia. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Brazier's Ear Shell

The Brazier's Ear Shell (Haliotis brazieri) is a species in the genus Haliotis. It is currently classified as Near Threatened on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.