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Hexanchus griseus Jaws Six Gilled Shark Dogfishes Cartilaginous Fishes Chondrichthyes Selachians Elasmobranchs Carcharinidae

  • Product Code: X26304
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Origin : Indian Ocean (Madagascar)

Size : cm 33 x 31

Six Gilled Saw-Toothed Jaws  Hexanchus griseus cm 33 x 31 Dogfishes Cartilaginous Fishes Chondrichthyes Selachians Elasmobranchs Hexanchidae, only a piece, as in photos.
It is a rare fish, hard to find and to prepare.
Also available Shark Teeth and Necklaces, at this link.

The Six Gilled Shark (Hexanchus griseus Bonnaterre, 1788), also known as Ox Fish or Beef Fish, is the largest shark of the Hexanchidae family, as it can reach 5.4 meters and 590 Kg. Many of the members of this family are extinct, while the current sharks are genetically closer to Scyliorhinidae, Squalidae, Dalatiidae and Somniosus microcephalus, as well as the other species with 6 and 7 squid slots. It is possible to find many more species similar to H. griseus among fossils (see Hexanchus gigas for sale on our website) rather than the living species. Some of these extinct species date back to the Triassic (200 million years ago) and the Hexanchus griseus has peculiar characteristics both primitive and typical of more modern sharks.
The body appears heavy and fusiform, it has six pairs of squirrel slits, while most of the sharks have 5. The mouth is ventral with six rows of teeth shaped like combs and similar to hacked blades. Many biologists believe that male teeth have adapted to court rituals. The long cusps allow him to cling to the grooves of the female to push it to the coupling. Evidence of this theory is due to the fact that females have been observed with seasonal scratches on the area of ​​the fissures.
The species, heavily migratory, lives mostly in the oceans of the globe in tropical and temperate waters. Although usually alive in deep waters up to 2500 mt, it is known to move overnight at night, often to look for food.
Although it is normally slow in movement, it is quick to shoot and catch the prey. Given the vast area that it covers, it has a large variety of prey such as shellfish, crustaceans, agnate, anchovies, Pacific salmon and various cod species. Other sharks, races, chimeras, cuttlefish, fish roaches and even seals may come to eat.
It seems that the species is ovoviviparous, that is, the small are kept in the maternal body until the eggs that welcome them do not open. The female usually puts about a hundred people in the world, in size between 65 and 74 cm. When they come to light, they have a lighter color belly than adults, a camouflage mechanism that promotes mimicry. However, the mortality rate in young specimens is very high.

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