6-gilled shark vs Bigeye Sixgill Shark

Hexanchus griseus compared with Hexanchus nakamurai

Key Differences

• 6-gilled shark is Not Evaluated while Bigeye Sixgill Shark is Near Threatened.

Taxonomic Classification

Rank	6-gilled shark	Bigeye Sixgill Shark
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Elasmobranchii	Elasmobranchii
Order same	Hexanchiformes (Hexanchiformes)	Hexanchiformes (Hexanchiformes)
Family same	Hexanchidae	Hexanchidae
Genus same	Hexanchus	Hexanchus
Species	Hexanchus griseus	Hexanchus nakamurai

Evolutionary Relationship

6-gilled shark and Bigeye Sixgill Shark share a common ancestor at the Genus level: Hexanchus.

Conservation Status

6-gilled shark

NE — Not Evaluated

Bigeye Sixgill Shark

NT — Near Threatened

Physical Characteristics

Attribute	6-gilled shark	Bigeye Sixgill Shark
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

6-gilled shark

Habitat

Native to Asia and Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Chile, Venezuela).

Bigeye Sixgill Shark

Habitat

Native to Asia and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Taiwan and Venezuela. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

6-gilled shark

The 6-gilled shark (Hexanchus griseus) is a species in the genus Hexanchus. It is not yet evaluated on the IUCN Red List. It is found across Chile, Denmark, Norway, and 2 other countries, inhabiting Native to Asia and Europe and South America, inhabiting ecosystems characteristic of the region.

Bigeye Sixgill Shark

The Bigeye Sixgill Shark (Hexanchus nakamurai) is a species in the genus Hexanchus. It is currently classified as Near Threatened on the IUCN Red List. Native to Asia and South America, inhabiting ecosystems characteristic of the region.

Shared Countries

Both species can be found in 2 countries:

🇹🇼 Taiwan 🇻🇪 Venezuela