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Carcharhiniformes

 
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Carcharhiniformes
 
 
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The ground sharks, order Carcharhiniformes, are the largest order of 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; they are also called whaler sharks. With over 270 species, carcharhiniforms include a number of common types, such as the blue shark
Blue shark

The blue shark, Prionace glauca, is a carcharhinid shark which is found in the deep waters of the world's temperate and tropical oceans. They prefer cooler waters and are not found, for example, in the Yellow Sea or in the Red Sea....
, catsharks, swellsharks, and sandbar shark
Sandbar shark

The sandbar shark, Carcharhinus plumbeus, is a species of requiem shark, family Carcharhinidae, native to the Atlantic Ocean and the Indo-Pacific....
.

Members of the orders are characterized by the presence of a nictitating membrane
Nictitating membrane

The nictitating membrane is a transparent or translucent third eyelid present in some animals that can be drawn across the eye for protection and to moisten the eye while also keeping visibility....
 over the eye, two dorsal fin
Dorsal fin

A wikt:dorsal fin is a fin located on the backs of some fish, whales, dolphins, and porpoises, as well as the ichthyosaurs. Its main purpose is to stabilize the animal against rolling and assist in sudden turns....
s, an anal fin, and five 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.

The families of the carcharhiniforms are expected to be revised; recent DNA
DNA

Deoxyribonucleic acid is a nucleic acid that contains the genetics instructions used in the development and functioning of all known living organisms and some viruses....
 studies show that some of the traditional groups are not monophyletic.








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The ground sharks, order Carcharhiniformes, are the largest order of 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; they are also called whaler sharks. With over 270 species, carcharhiniforms include a number of common types, such as the blue shark
Blue shark

The blue shark, Prionace glauca, is a carcharhinid shark which is found in the deep waters of the world's temperate and tropical oceans. They prefer cooler waters and are not found, for example, in the Yellow Sea or in the Red Sea....
, catsharks, swellsharks, and sandbar shark
Sandbar shark

The sandbar shark, Carcharhinus plumbeus, is a species of requiem shark, family Carcharhinidae, native to the Atlantic Ocean and the Indo-Pacific....
.

Members of the orders are characterized by the presence of a nictitating membrane
Nictitating membrane

The nictitating membrane is a transparent or translucent third eyelid present in some animals that can be drawn across the eye for protection and to moisten the eye while also keeping visibility....
 over the eye, two dorsal fin
Dorsal fin

A wikt:dorsal fin is a fin located on the backs of some fish, whales, dolphins, and porpoises, as well as the ichthyosaurs. Its main purpose is to stabilize the animal against rolling and assist in sudden turns....
s, an anal fin, and five 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.

The families of the carcharhiniforms are expected to be revised; recent DNA
DNA

Deoxyribonucleic acid is a nucleic acid that contains the genetics instructions used in the development and functioning of all known living organisms and some viruses....
 studies show that some of the traditional groups are not monophyletic.

Families

  • Carcharhinidae (requiem sharks)
  • Hemigaleidae
    Hemigaleidae

    The weasel sharks are a family, Hemigaleidae, of Carcharhiniformes found from the eastern Atlantic Ocean to the continental Indo-Pacific. They are found in shallow coastal waters to a depth of 100 m ....
     (weasel sharks)
  • Leptochariidae (barbeled houndshark)
  • Proscylliidae
    Proscylliidae

    The finback catsharks are a small family of sharks, with only 7 species in 4 Genus....
     (finback cat sharks)
  • Pseudotriakidae (false cat shark)
  • Scyliorhinidae (cat sharks)
  • Sphyrnidae (hammerhead sharks)
  • Triakidae (hound sharks)


Taxonomy

  • List of species of the order Carcharhiniformes


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