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汉语拼音：tún qí

鱼类肛门后面的鳍。

1. 鱼类肛门后面的鳍。

• Similar to G. affinis, the anal fin of male would develop into a gonopodium .

  雄性孔雀鱼与食蚊鱼一样，臀鳍会演化为生殖管。

• The tail region, Bordered Below by a long anal fin that the fish undulates to move about, contains the electric organs.

  鳍的下缘有一长形臀鳍，依靠臀鳍的波动而游动。

• The male shows elongated rays in its anal fin and yellow pearl organs on the jaws and opercula during breeding season.

  雄鱼的臀鳍鳍条特长，交配季节两颌和鳃盖会长出黄色的珠星。

• Old World freshwater catfishes having naked skin and a long anal fin more or less merged with the eellike caudal fin.

  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。

• large food fish of warm waters worldwide having long anal and dorsal fins that with caudal fin suggest a three-lobed tail.

  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。

• male guppy mating of the anal fin into vehicles.

  雄性食蚊鱼的臀鳍成为交配器等。

• Dorsal and anal fin: control flow, to maintain a balance.

  背鳍与臀鳍：控制水流、保持平衡。

• 7th and 8th ending in a dark blotch at the rear base of soft part of anal fin.

  第7与第8在臀鳍的软棘的部位的后面基底末端形成一个黑色斑块。

• pay attention to anal deformity usually affects the quality of large offspring.

  留意一下臀鳍，畸形的一般后代质量受影响较大。