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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Keeltail needlefish ： ウィキペディア英語版 Keeltail needlefish The keeltail needlefish, sometimes called the keeled needlefish, is a tropical fish of the family Belonidae. It was described by the French naturalist Charles Alexandre Lesueur in 1821. ==Description== Keeltail needlefish, like all needlefish, closely resemble North American freshwater gars (family Lepisosteidae). It is most recognized by the large, flat keel-like structures running on either side of the tail.〔REEF FISH Identification FLORIDA CARIBBEAN BAHAMAS; Humann, Paul and Ned Deloach; New World Publications Inc., Jacksonville, Fl; pp. 58-59〕 They have 12 to 15 rays on their dorsal fins, and 17 to 20 rays on their anal fin. Keeltail needlefish have gill-rakers, their caudal peduncles have lateral keels,〔(【引用サイトリンク】title=Fishbase.org entry on Keeltail needlefish )〕 with a lateral line running ventral to it, and grow up to 50 cm long 〔Claro, R., 1994. Características generales de la ictiofauna. p. 55-70. In R. Claro (ed.) Ecología de los peces marinos de Cuba. Instituto de Oceanología Academia de Ciencias de Cuba and Centro de Investigaciones de Quintana Roo.〕 The keeltail needlefish's top jaw is also smaller than the lower one.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Keeltail needlefish」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.