These are high ages of maturity and longevity for fish, however age determination is inexact, and studies would be required to confirm such estimates. Development of a fishery for bluntnose sixgill in British Columbia is being explored, as a replacement for other traditional bony fish and elasmobranch fisheries that are now in decline. A second, smaller sixgill shark was then seen foraging for food in the mud in front of the submersible. The crew zoomed in to catch a better look and were able to identify the species–a bluntnose sixgill shark. The Bluntnose Sixgill shark is a primitive, common, and distinctive shark that has six gills on each side of the body (most sharks have five pairs on each side of the face). In the eastern Atlantic, this shark is found from Iceland and Norway south to Namibia, including the Mediterranean Sea. Facts about Bluntnose Sixgill Shark, "Scientfic name for is Bluntnose Sixgill Shark is Hexanchus griseus". 2002), such as the presence of six gill slits as well as a single dorsal fin (all other shark species found in Canadian Pacific waters, with the exception of the Broadnose Sevengill Shark (Notorynchus cepedianus), have a second dorsal fin). Bluntnose sixgill sharks, or Hexanchus griseus, are members of the cowshark family.Most sharks have five gill slits, but the aptly named sixgills have six. Facts about the Bluntnose sixgill shark - Hexanchus griseus from the Shark Research Institute (SRI). The sixgill sawshark, Pliotrema warreni is a sawshark of the family Pristiophoridae. Bluntnose sixgill sharks are believed to be primarily solitary animals and there is no information indicating whether they prefer one or many mates. Neil tests his veterinary skills and diving abilities to the max on a rescue mission to save the life of a prehistoric shark. The Bluntnose Sixgill Shark, Hexanchus griseus, is one of the largest predatory shark species and has a worldwide geographic distribution including all tropical and temperate oceans (Castro, 2011). From Bluntnose Sixgill Shark to All Types of Sharks. The sixgill shark prefers deep-water habitats, below 91 m (300 ft), though it can be found from the surface down to at least 2,000 m deep (about 6,500 ft). It has a blunt, rounded snout, and only a single dorsal fin. Bigeyed sixgill sharks, Hexanchus nakamurai (Teng, 1962), aka bigeye sixgill sharks, six-gill sharks, are members of the most ancient frill and cow sharks order, Hexanchiformes. //