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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 Colares stingray ： ウィキペディア英語版 Colares stingray The Colares stingray, ''Dasyatis colarensis'', is a species of stingray in the family Dasyatidae, native to the shallow brackish waters of the Amazon River estuary in northern Brazil. This species inhabits inshore bays during the dry season and moves away from the coast in the rainy season. It is characterized by a rhomboid pectoral fin disk, elongated snout, and a dark band on the lower lip. A fairly large species, males and females attain disk widths of and respectively. Females give birth to 1–4 young, possibly annually. Colares stingrays are both targeted and caught as bycatch by Brazilian artisanal and commercial fisheries; these pressures coupled with its small range and slow reproductive rate has led the International Union for Conservation of Nature (IUCN) to list this species as Vulnerable. ==Taxonomy== The Colares stingray was described by Hugo Santos, Ulisses Gomes, and Patricia Charvet-Almeida in 2004, in the scientific journal ''Zootaxa''. The specific epithet refers to Colares Island in Marajó Bay, where the type specimen, a long mature male, was caught. 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「Colares stingray」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.