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''Trygonoptera'' is a genus of round rays endemic to the waters around Australia. Müller and Henle defined ''Trygonoptera'' in 1841. It has often been considered synonymous with ''Urolophus'', but this has been refuted by recent studies. ''Trygonoptera'' can be distinguished from ''Urolophus'' in that the outer rims of its nostrils are enlarged into broad, flattened lobes; the two also differ in aspects of the skeleton. ==Species== There are currently six recognized species in this genus: * ''Trygonoptera galba'' Last & Yearsley, 2008 (Yellow shovelnose stingaree) * ''Trygonoptera imitata'' Yearsley, Last & M. F. Gomon, 2008 (Eastern shovelnose stingaree) * ''Trygonoptera mucosa'' Whitley, 1939 (Western shovelnose stingaree) * ''Trygonoptera ovalis'' Last & M. F. Gomon, 1987 (Striped stingaree) * ''Trygonoptera personata'' Last & M. F. Gomon, 1987 (Masked stingaree) * ''Trygonoptera testacea'' J. P. Müller & Henle, 1841 (Common 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「Trygonoptera」の詳細全文を読む スポンサード リンク
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