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Hexanchus

 
Hexanchus

 
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Hexanchus
 
 
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Hexanchus is a genus of deepwater shark
Shark

Sharks are a type of fish with a full Cartilage skeleton and a highly Streamlines, streaklines and pathlinesd body. They respire with the use of five to seven gill slits....
s in the family
Family (biology)

In biological classification, family is a taxonomic rank. Exact details of formal nomenclature depend on the Nomenclature Codes which applies....
 Hexanchidae. These sharks are characterized by broad pointed heads, six pairs of gill
Gill

A gill is an anatomical structure found in many aquatic ecosystem organisms. It is a respiration organ whose function is the extraction of oxygen from water and the excretion of carbon dioxide....
 slits, comb-like lower teeth, and a long tail. It can grow 4.85 (16 ft) long and weigh over 600 kg (1320 lb).








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Encyclopedia


Hexanchus is a genus of deepwater shark
Shark

Sharks are a type of fish with a full Cartilage skeleton and a highly Streamlines, streaklines and pathlinesd body. They respire with the use of five to seven gill slits....
s in the family
Family (biology)

In biological classification, family is a taxonomic rank. Exact details of formal nomenclature depend on the Nomenclature Codes which applies....
 Hexanchidae. These sharks are characterized by broad pointed heads, six pairs of gill
Gill

A gill is an anatomical structure found in many aquatic ecosystem organisms. It is a respiration organ whose function is the extraction of oxygen from water and the excretion of carbon dioxide....
 slits, comb-like lower teeth, and a long tail. It can grow 4.85 (16 ft) long and weigh over 600 kg (1320 lb).

Extant Species

  • Bluntnose sixgill shark
    Bluntnose sixgill shark

    The bluntnose sixgill shark, Hexanchus griseus, often simply called the cow shark, is the largest hexanchoid shark, growing to more than 5.4 m in length....
    , Hexanchus griseus (Bonnaterre, 1788)
  • Bigeye sixgill shark, Hexanchus nakamurai, (synonym Hexanchus vitulus) (Teng, 1962)


See also

  • Shark teeth


See also

  • List of prehistoric cartilaginous fish
    List of prehistoric cartilaginous fish

    This list of prehistoric cartilaginous fish is an attempt to create a comprehensive listing of all Genus that have ever been included in the class chondrichthyes and are known from the fossil record....


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