Cow shark
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Cow sharks are a shark family, the Hexanchidae, characterized by an additional pair or pairs of gill slits. Its species are placed within the 11 genera: Gladioserratus, Heptranchias, Hexanchus, Notida
Six gill shark
View of the six gill openings of Hexanchus nakamurai
Bluntnose sixgill shark
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The bluntnose sixgill shark, often simply called the cow shark, is the largest hexanchoid shark, growing to 18 ft in length. It is found in tropical and temperate waters worldwide. Its diet varies wid
Cow shark
…howelli Reed, 1946 †Heptranchias karagalensis Kozlov in Zhelezko & Kozlov, 1999 †Heptranchias tenuidens Leriche, 1938 Hexanchus Rafinesque, 1810 Hexanchus griseus (Bonnaterre, 1788) (bluntnose sixgill shark) Hexanchus nakamurai Teng, 1962 (bigeyed sixgill shark) Hexanchus vitulus Springer & Waller, 1969 (atlantic…
Hexanchus griseus
1877 drawing of the bluntnose sixgill shark
The Bluntnose sixgill shark is one of few shark species that have six gill pairs, rather than five as in most other sharks
Jaws, male