World Library  
Flag as Inappropriate
Email this Article

Snaggletooth shark

Article Id: WHEBN0006566352
Reproduction Date:

Title: Snaggletooth shark  
Author: World Heritage Encyclopedia
Language: English
Subject: Carcharhiniformes, Hemipristis, Blackbelly lanternshark, Eastern Australian sawshark, Etmopteridae
Collection:
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Snaggletooth shark

Snaggletooth shark
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Superorder: Selachimorpha
Order: Carcharhiniformes
Family: Hemigaleidae
Genus: Hemipristis
Agassiz, 1843
Species: H. elongata
Binomial name
Hemipristis elongata
(Klunzinger, 1871)
Range of the snaggletooth shark

The snaggletooth shark, or fossil shark (Hemipristis elongata), is a species of weasel shark, in the family Hemigaleidae, and the only extant member of the genus Hemipristis. It is found in the Indo-West Pacific, including the Red Sea, from southeast Africa to the Philippines, north to China, and south to Australia, at depths of from 1 to 130 m. This shark can be found near the bottom of the water column of coastal areas, but can be found at continental and insular shelves.[1] Its length is up to 240 cm (7.87 ft) .[2] Despite being only vulnerable to extinction, this shark is very rarely seen.

Contents

  • Anatomy 1
  • Food 2
  • Commercial uses 3
  • See also 4
  • References 5

Anatomy

The snaggletooth's coloration is light grey or bronze with no prominent markings. As its name suggests, it has sharp, serrated teeth on the upper jaw and hooked teeth on the bottom jaw. The shape of its body is fusiform, allowing it greater speed in the water.[3]

Reproduction is a special kind of viviparity, called placental viviparity. This is when the shark carries its live young in a placental-like structure, complete with umbilical cord. The placenta structure is derived from the wall of the embryonic yolk sac that has fused with the uterine wall.[4]

Food

The Snaggletooth shark preys on a variety of different animals, including bony fish, other sharks, ray, crabs and cephalopods.[5][3][6]

Commercial uses

There is a fishery for this shark, where sharks are usually caught by fishing trawlers (a type of fishing boat), or by gill nets. Fins are used in the shark fin soup trade in China, and other Asian countries. The meat is sold for consumption, the liver used as a source for vitamins and the rest of the carcass is processed into fish meal.[2]

See also

References

Cech, J. J. JR. and P. B. Moyle. 2004. Fishes: An Introduction to Ichthyology. 5th ED. Prentice Hall, Upper Saddle River, NJ.

Chandrasekar, S. and P. Devadoss. 1991. A note on the rare snaggle tooth shark, Hemipristis elongata. Mar. Fish. Infor. Serv. 114:36.[6]

Katkar, B.N. and C. J. Josekutty. 2003. Snaggletooth shark, Hemipristis elongata landed at Sassoon Dock, Mumbai. Mar. Fish. Infor. Serv. 176:12.[2]

Manojkumar, P.P and P.P. Pavithran. 2004. First record of snaggletooth shark, Hemipristis elongata (Klumzinger, 1871) from Malabar Coast. Mar. Fish. Infor. Serv. 180:13-14.[3]

(Klunzinger, 1871) Snaggletooth shark"Hemipristis elongata. Fishbase. Retrieved 2011-11-09.

  1. ^ (Klunzinger, 1871) Snaggletooth shark"Hemipristis elongatus". Fishbase. Retrieved 9 November 2011. 
  2. ^ a b c [1], Katkar & Josekutty 2003.
  3. ^ a b c [2], Manojkumar & Pavithran 2004.
  4. ^ Cech, Moyle, Joseph J. Jr., Peter B (2004). Fishes: An Introduction to Ichthyology. Upper Saddle River: Prentice Hall. p. 15.  
  5. ^ (Klunzinger, 1871) Snaggletooth shark"Hemipristis elongatus". Fishbase. Retrieved 9 November 2011. 
  6. ^ a b [3], Chandrasekar & Devadoss 1991.
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.