| 鱼类肛门的位置与形态 |
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| 引用本文： | 金丽,赵娜,张耀光.鱼类肛门的位置与形态[J].安徽农业科学,2011,39(25):15382-15383,15386. |
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| 作者姓名： | 金丽 赵娜 张耀光 |
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| 作者单位： | 西南大学生命科学学院,淡水鱼类资源与生殖发育教育部重点实验室,水产科学重庆市市级重点实验室,重庆400715 |
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| 基金项目： | 国家科技支撑计划项目，西南大学博士基金项目 |
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| 摘 要： | 对66种鱼类肛门的位置与形态进行观察,结果发现：肛门位置可以分为前位型、中位型和后位型,肛门与生殖孔间的距离可分为紧紧相邻型、间距型和紧邻间距型,肛门的形态可以分为椭圆形、圆形、凹陷型、花瓣型、泄殖腔型。另外还观察到1尾胭脂鱼肛门异位个体。
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| 关 键 词： | 鱼类 肛门 位置与形态 |
Position and Shape of Anus in Fish |
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| Institution: | JIN Li et al(The Key Laboratory of Aquatic Science of Chongqing,Key Laboratory of Freshwater Fish Reproduction and Development of Ministry of Education,School of Life Sciences,Southwest University,Chongqing 400715) |
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| Abstract: | The position and shape of anus in 66 species of fish were examined,it was found out that the positions of anus in these fish were divided into anteposition type,midposition type and postposition type,and the distances between anus and gonopore were classified into close-neighbour type,spacing type and close-spacing type,and the anal shapes were divided into ellipse,roundness,umbilication,petal-type and cloaca-type.In addition,an ectopic anus was observed in one individual Chinese sucker(Myxocyprinus asiaticus). |
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| Keywords: | Fish Anus Position and shape |
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