Echinorhinus

Echinorhinus
Temporal range: 84–0 Ma[1]
Campanian to Present
Bramble shark, Echinorhinus brucus
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Order: Squaliformes
Family: Echinorhinidae
T. N. Gill, 1862
Genus: Echinorhinus
Blainville, 1816

Echinorhinus is a genus of squaliform sharks, 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 down to 900 metres (3,000 ft) depth.[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 metres (10 ft) and 4 metres (13 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]

Species

See also

References

  1. ^ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Chondrichthyes entry)". Bulletins of American Paleontology 364: 560. http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=575&rank=class. Retrieved 2008-01-09. 
  2. ^ a b Froese, Rainer, and Daniel Pauly, eds. (2009). "Echinorhinidae" in FishBase. January 2009 version.