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Echinorhinus

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Kingdom  Animalia
Scientific name  Echinorhinus
Higher classification  Echinorhinidae
Order  Squaliformes
Superorder  Selachimorpha
Phylum  Chordata
Rank  Genus
Subclass  Elasmobranchii
Echinorhinus wwwsqualicomsqualifossiliechinorhinusblakeyjpg

Family  Echinorhinidae T. N. Gill, 1862
Lower classifications  Bramble shark, Prickly shark

Echinorhinus is the only extant genus in the family Echinorhinidae.

Contents

Taxonomy

Echinorhinus Echinorhinus brucus Bramble shark

While some scientists have proposed that the Echinorhinidae be given an order separate from Squaliformes, the general current consensus is that the Echinorhinidae are still a family in the order Squaliformes.

Etymology

The name is from Greek echinos meaning "spiny" and rhinos meaning "nose".

Species

  • Echinorhinus brucus Bonnaterre, 1788 (bramble shark)
  • Echinorhinus cookei Pietschmann, 1928 (prickly shark)
  • Description

    Echinorhinus ralok trnit Echinorhinus brucus Bramble shark raloci rejnoci

    This genus includes two extant species of uncommon, little-known sharks. Both species are relatively large sharks, at 3.1 to 4.0 m (10.2 to 13.1 ft) in body length. They are characterized by a short nose and by rough, thorn-like dermal denticles scattered over its body, some of which may be fused together. They have no anal fin. Two small spineless dorsal fins are positioned far back.

    Biology

    Echinorhinus FileEchinorhinus brucus Mc Coyjpg Wikimedia Commons

    They are ovoviviparous, with the mother retaining the egg-cases inside her body until they hatch, producing litters up to 24 pups. They feed on smaller sharks, smaller bony fish, and on crabs and cephalopods.

    Distribution

    These sharks are found worldwide in cold temperate to tropical seas from the surface down to 900 m (3,000 ft).

    Echinorhinus FileEchinorhinus brucus Gervaisjpg Wikimedia Commons

    Echinorhinus Echinorhinus

    Echinorhinus FileEchinorhinus brucus1jpg Wikimedia Commons

    References

    Echinorhinus Wikipedia