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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 Common stingaree ： ウィキペディア英語版 Common stingaree The common stingaree (''Trygonoptera testacea'') is a species of stingray in the family Urolophidae. The most abundant ray in inshore waters off eastern Australia, it generally inhabits estuaries, sandy flats, and rocky reefs from the shore to a depth of . This plain brownish to grayish species has a rounded pectoral fin disc with a broadly triangular snout. Its nostrils have enlarged lobes on their outer margins and a skirt-shaped curtain of skin with a fringed posterior margin between them. Its tail bears a small dorsal fin before the stinging spine, and terminates in a leaf-shaped caudal fin. This ray can grow to long. When young, the common stingaree preys almost entirely on shrimp; as it matures it comes to feed predominantly on polychaete worms. It is aplacental viviparous, with the developing embryos sustained by histotroph ("uterine milk") produced by the mother. Females usually bear two pups at a time. The common stingaree contributes substantially to the bycatch of commercial trawl and other fisheries within its range, and is also caught regularly by recreational fishers. It survives capture fairly well, but tends to abort any gestating young; it may also suffer persecution by fishery workers. Nevertheless, the common stingaree population does not appear to be in decline, and thus it has been listed as of Least Concern by the International Union for Conservation of Nature (IUCN). ==Taxonomy== The earliest known record of the common stingaree is a drawing made by English naturalist Joseph Banks during the first voyage of James Cook from 1768 to 1771, of a specimen from New Holland (Australia) that was never preserved. Based on the drawing, German biologists Johannes Müller and Jakob Henle described the species in their 1839–41 ''Systematische Beschreibung der Plagiostomen'', creating for it the new genus ''Trygonoptera'' and giving it the specific epithet ''testacea'', derived from the Latin word for "brick-colored". In Australia, this species may be referred to simply as "stingray" or "stingaree". 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「Common stingaree」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.