Any of various spiny-finned freshwater fishes of the genus Perca, especially either of two edible species, P. flavescens, of North America, and P. fluviatilis, of Europe.
河鲈任何一种有刺状鳍的鲈属淡水鱼，尤指两种可食用类，北美洲的金鲈和欧洲的河鲈。
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AIM: To compare the morphology of wing spot between Anophelesminimus Theobald, 1901 and Anopheles fluviatilis James, 1902 and find out the reliable diagnostic characteristics.