臀鳍
tún qí
- anal fin
臀鳍 臀鳍
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[anal fin] 鱼身后部中央位于肛孔之后的一片孤单的鳍,有时能与尾鳍连合
臀鳍[tún qí]
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臀鳍ii，5；
Anal fin rays ii , 5 ;
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东半球的淡水鲇鱼，体表无鳞，有类似鳗鱼尾鳍的很长的臀鳍。
Old World freshwater catfishes having naked skin and a long anal fin more or less merged with the eellike caudal fin .
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世界各地温暖水域中的大型食用鱼，背鳍和臀鳍很长象有三个分叶的尾巴。
Large food fish of warm waters worldwide having long anal and dorsal fins that with caudal fin suggest a three-lobed tail .
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白首鲤一种相关于鲤鱼和鲦鱼的鲤科淡水鱼，尤指欧亚品种，圆鳍雅罗鱼背鳍和臀鳍各一，形长，均与尾鳍基部相连，尾鳍圆形
Any of various freshwater fishes of the family Cyprinidae related to the carps and minnows , especially a Eurasian species , Leuciscus cephalus . " It has one dorsal and one anal fin , Both long and Both connected to the rounded tail . "