Bigeye thresher vs Ninespot Chimaera

Alopias pelagicus compared with Hydrolagus barbouri

Key Differences

• Bigeye thresher is Endangered while Ninespot Chimaera is Data Deficient.

Taxonomic Classification

Rank	Bigeye thresher	Ninespot Chimaera
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Holocephali (Holocephali)
Order	Lamniformes (Mackerel Sharks)	Chimaeriformes (Chimaeriformes)
Family	Alopiidae	Chimaeridae
Genus	Alopias	Hydrolagus
Species	Alopias pelagicus	Hydrolagus barbouri

Evolutionary Relationship

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

Conservation Status

Bigeye thresher

EN — Endangered

Ninespot Chimaera

DD — Data Deficient

Physical Characteristics

Attribute	Bigeye thresher	Ninespot Chimaera
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.

Ninespot Chimaera

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.