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great lanternshark
The great lanternshark, ''Etmopterus princeps'', also known as Rough Sagre Shark, is a shark of the family Etmopteridae found in the northeast and northwest Atlantic.〔Compagno, Dando, & Fowler, ''Sharks of the World'', Princeton University Press, New Jersey 2005 ISBN 0-691-12072-2〕 Its name was given as at the time of its discovery, it was thought to be bioluminescent, but this has been challenged.〔http://www.deepseawaters.com/rough-sagre-shark.htm〕
==Description==
This species of shark is slender and small, generally found in deep water. They can grow up to .〔 Rui Coelho and Karim Erzini (2005). Length at first maturity of two species of lantern sharks (Etmopterus spinax and Etmopterus pusillus) off southern Portugal. Journal of the Marine Biological Association of the United Kingdom, 85, pp 1163-1165. doi:10.1017/S0025315405012245. 〕 It is a black or a very dark brown, uniformly, in color, and lacks an anal fin. It lives from to . The dorsal fins have an associated spine. 〔http://new-brunswick.net/new-brunswick/sharks/species/roughsagre.html〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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