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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 Blacktip sawtail catshark ： ウィキペディア英語版 Blacktip sawtail catshark The blacktip sawtail catshark (''Galeus sauteri'') is a species of catshark, and part of the family Scyliorhinidae, found off the coasts of Taiwan and the Philippines. It is demersal in nature and occurs deeper than . Growing up to long, this slim-bodied species is characterized by its plain brownish dorsal coloration with dark tips on the dorsal and caudal fins, and a prominent crest of enlarged dermal denticles on the upper edge of the caudal fin. It is oviparous, with females producing encapsulated eggs two at a time year-round. The blacktip sawtail catshark is caught incidentally in bottom trawls and used for fishmeal in Taiwan. However, the International Union for Conservation of Nature (IUCN) currently lacks enough information to assess its conservation status. ==Taxonomy and phylogeny== In 1906, the Carnegie Museum purchased an extensive collection of fishes assembled from the markets of Takao (Kaohsiung), Taiwan by Hans Sauter. American ichthyologists David Starr Jordan and Robert Earl Richardson described several new species from the collection in a 1909 issue of ''Memoirs of the Carnegie Museum'', including a catshark of the genus ''Pristiurus'' that they named in Sauter's honor. Jordan and Richardson referenced six syntypes long in their description, of which four survive to the present day. Later authors have recognized ''Pristiurus'' as a junior synonym of the genus ''Galeus''. A 2005 phylogenetic study, based on mitochondrial and nuclear DNA, found that this species, ''G. eastmani'', and ''G. gracilis'' form a clade apart from ''G. melastomus'' and ''G. murinus''. 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「Blacktip sawtail catshark」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.