Echinorhinus

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Echinorhinus
Temporal range: 84–0Ma[1]
Campanian to Present
Echinorhinus brucus.jpg
Bramble shark, Echinorhinus brucus
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Superorder: Selachimorpha
Order: Squaliformes
Family: Echinorhinidae
T. N. Gill, 1862
Genus: Echinorhinus
Blainville, 1816
Echinorhinus species distmaps.svg
The distribution of the two Echinorhinus species

Echinorhinus is the only extant genus in the family Echinorhinidae. The name is from Greek echinos meaning "spiny" and rhinos meaning "nose." Both species are uncommon, little-known sharks. They are found worldwide in cold temperate to tropical seas from the surface down to a depth of 900 m (3,000 ft).[2]

This genus includes two extant species characterized by a short nose, rough spiny dermal denticles, no anal fin, and two small spineless dorsal fins. Both species are relatively large sharks, at 3.1 to 4.0 m (10.2 to 13.1 ft) in body length. They feed on smaller fish, and on crabs and cephalopods. They are ovoviviparous, with the mother retaining the egg-cases inside her body until they hatch.[2] While some scientists have proposed that Echinorhinidae be given an order separate from Squaliformes, the general current consensus is that Echinorhinidae is still a family in the order Squaliformes [3]

Species[edit]

See also[edit]

References[edit]

  1. ^ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Chondrichthyes entry)". Bulletins of American Paleontology 364: 560. Retrieved 2008-01-09. 
  2. ^ a b Froese, Rainer, and Daniel Pauly, eds. (2009). "Echinorhinidae" in FishBase. January 2009 version.
  3. ^ Compagno, 2005. "Sharks of the World". ISBN 9780691120720