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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 Prickly dogfish ： ウィキペディア英語版 Prickly dogfish The prickly dogfish (''Oxynotus bruniensis'') is a poorly known species of dogfish shark in the family Oxynotidae, inhabiting temperate Australian and New Zealand waters. Reaching a length of , this brown to gray shark has a very thick body with a prominent "humpback" and extremely rough skin. It is further characterized by two enormous, sail-like dorsal fins placed relatively close together. Both dorsal fins have a spine embedded mostly within the fleshy leading portion of the fin; the first dorsal spine is tilted forward. Found near the sea floor over outer continental and insular shelves and upper slopes, the prickly dogfish is thought to be a slow-moving predator of small benthic organisms. It is aplacental viviparous, with females giving birth to litters of around seven pups. This species is an uncommon bycatch of bottom trawls, though there is insufficient information for the International Union for Conservation of Nature (IUCN) to assess its conservation status. ==Taxonomy== Australian ichthyologist James Douglas Ogilby originally described the prickly dogfish from a desiccated specimen discovered on a beach on Bruny Island off southeastern Tasmania, Australia. He published his account in an 1893 issue of the scientific journal ''Records of the Australian Museum'' and, at the behest of Tasmanian Museum Curator Alex Morton, named it ''Centrina bruniensis'' after the type locality. Subsequent authors have synonymized the genus ''Centrina'' with ''Oxynotus''. 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「Prickly dogfish」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.