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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 Stejneger's beaked whale ： ウィキペディア英語版 Stejneger's beaked whale Stejneger's beaked whale (''Mesoplodon stejnegeri''), also known as the Bering Sea beaked whale or the saber-toothed whale, is a relatively unknown member of the genus ''Mesoplodon'' inhabiting the northern North Pacific Ocean. Leonhard Hess Stejneger collected the type specimen (a beach-worn skull) on Bering Island in 1883, from which Frederick W. True provided the species' description in 1885. In 1904, the first complete skull (from an adult male that had stranded near Newport, Oregon) was collected, which confirmed the species' validity.〔True, F.W. 1910. ''An account of the beaked whales of the family Ziphiidae in the collection of the United States National Museum, with remarks on some specimens in other American museums''. Washington: Government Printing Office.〕 The most noteworthy characteristic of the males is the very large, saber-like teeth, hence the name. ==Description== The body for this species is typical for a mesoplodont, long and tapering at both ends. The beak is of medium length, and the mouthline forms an arch, though much smoother than other species. The teeth of the males are much larger than those of most other mesoplodonts and point forwards and inwards right in front of the apex. Only strap-toothed whales and spade-toothed whales have longer teeth. The coloration is overall dark gray to black on the body with light coloration below, and around the head giving it a "helmeted" appearance. The coloration darkens with age, but females have a light pattern on the bottom of the flukes that becomes more apparent with age. Like most species, scars occur on the males (from other males) and cookiecutter shark bites are present on both sexes. The length is at least 5.25 meters (17 feet 6 inches) for males and 5.5 meters (18 feet) for females. They are likely around 2.1 to 2.3 meters (7 to 8 feet) in length when born. 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「Stejneger's beaked whale」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.