World Library  
Flag as Inappropriate
Email this Article

Echinorhinus

Article Id: WHEBN0003460882
Reproduction Date:

Title: Echinorhinus  
Author: World Heritage Encyclopedia
Language: English
Subject: Squaliformes, Outline of sharks, Shark, Great white shark, Bramble shark
Collection:
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Echinorhinus

Echinorhinus
Temporal range: 84–0 Ma[1]
Є
O
S
D
C
P
T
J
K
Pg
N
Campanian to Present
Bramble shark, Echinorhinus brucus
Echinorhinus brucus, mounted specimen, on display at the Museo storia naturale di Pisa
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Superorder: Selachimorpha
Order: Squaliformes
Family: Echinorhinidae
T. N. Gill, 1862
Genus: Echinorhinus
Blainville, 1816
The distribution of the two Echinorhinus species

Echinorhinus is the only extant genus in the family Echinorhinidae.

Contents

  • Taxonomy 1
  • Etymology 2
  • Species 3
  • Description 4
  • Biology 5
  • Distribution 6
  • See also 7
  • References 8

Taxonomy

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 [2]

Etymology

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

Species

Description

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

They are ovoviviparous, with the mother retaining the egg-cases inside her body until they hatch, producing litters up to 24 pups.[3] 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 a depth of 900 m (3,000 ft).[3]

See also

References

  1. ^ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Chondrichthyes entry)". Bulletins of American Paleontology 364: 560. Retrieved 2008-01-09. 
  2. ^ Compagno, 2005. "Sharks of the World". ISBN 9780691120720
  3. ^ a b Froese, Rainer, and Daniel Pauly, eds. (2009). "Echinorhinidae" in FishBase. January 2009 version.
  • "Echinorhinus".  
  • Froese, Rainer, and Daniel Pauly, eds. (2006). "Echinorhinidae" in FishBase. January 2006 version.
  • Froese, Rainer, and Daniel Pauly, eds. (2006). EchinorhinusSpecies of in FishBase. January 2006 version.
  • FAO Species Catalogue Volume 4 Parts 1 and 2 Sharks of the World
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 



Copyright © World Library Foundation. All rights reserved. eBooks from World Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.