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The bluntnose sixgill is a species of sixgill sharks, of genus Hexanchus, a genus that also consists of two other species: the bigeye sixgill shark (Hexanchus nakamurai) and the Atlantic sixgill shark (Hexanchus vitulus). Through their base pairs of mitochondrial genes COI and ND2, these three species of sixgills widely differ from one another.
The sixgill sharks are a genus, Hexanchus, of deepwater sharks in the family Hexanchidae. These sharks are characterized by a broad, pointed head, six pairs of gill slits, comb-like, yellow lower teeth, and a long tail. The largest species can grow up to 8 m long and weigh over 600 kg (1320 lb). [3]
The body of this shark is small, slim, and fusiform in shape. As the name suggests, this shark has six gill slits, unusual among most shark species. The head is narrow and somewhat flattened, and the mouth contains 5 rows of large, comb-shaped teeth. This shark's single dorsal fin is pushed back towards the caudal fin, and is behind the pelvic ...
A team of scientists recently captured the elusive bluntnose sixgill shark, a deep-sea fish that has been on Earth before dinosaurs, on film.
The Atlantic sixgill shark (Hexanchus vitulus) is a rare species of hexanchid shark found in the Atlantic Ocean at depths that are greater than 300 meters. [1] These depths are known as mesopelagic and bathypelagic in tropical and temperate waters around the world. [1]
Frilled sharks contain only two extant species of deepsea creatures which are typically weakened in areas closer to the surface. The most widely known species still surviving is the frilled shark , known as a living fossil, along with the Southern African frilled shark , found along coastal areas of South Africa.
A reclusive deep-water species that’s generally found on the coast, Washington Department of Fish and Wildlife (WDFW) biologists think that sixgill sharks come into Puget Sound to pup.
Frill sharks and cow sharks (Hexanchiformes) The largest frill sharks and cow shark is the Bluntnose sixgill shark ( Hexanchus griseus ). This large species typically inhabits depths greater than 90 m (300 ft), and has been recorded as deep as 1,875 m (6,152 ft).