| 耳萝卜螺胚胎发育的初步观察 |
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| 引用本文： | 张文香,薛红玲,王运芝,葛慕湘,张福彬.耳萝卜螺胚胎发育的初步观察[J].河北科技师范学院学报,2000(2). |
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| 作者姓名： | 张文香 薛红玲 王运芝 葛慕湘 张福彬 |
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| 作者单位： | 河北职业技术师范学院动物科学系!昌黎，066600，河北职业技术师范学院动物科学系!昌黎，066600，河北职业技术师范学院动物科学系!昌黎，066600河北职业技术师范学院水产95级学生，河北职业技术师范学院动物科学系!昌黎，066600，河北省昌黎县农业机械化技术学校 |
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| 摘 要： | 采用定时取样 ,间断观察的方法 ,对耳萝卜螺胚胎发育的形态特征进行了观察。发现耳萝卜螺的胚胎发育过程分 7个时期 :卵裂期、囊胚期、原肠期、担轮幼虫期、面盘幼虫期、幼螺形成期和孵化期。对各期的外部形态特征进行了描述 ,并绘制了各期形态图 ,记录了各期发育所经历的时间
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| 关 键 词： | 耳萝卜螺 胚胎发育 形态特征 发育时期 发育时间 |
A PRELIMINARY OBSERVATION ON THE EMDNBYONIC DEVELOPMENT OF Radix auricularia |
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| ZHANG Wen xiang,XUE Hong ling,WANG Yun zhi,GE Mu xiang,ZHANG Fu bin.A PRELIMINARY OBSERVATION ON THE EMDNBYONIC DEVELOPMENT OF Radix auricularia[J].Journal of Hebei Normal University of Science & Technology,2000(2). |
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| Authors: | ZHANG Wen xiang XUE Hong ling WANG Yun zhi GE Mu xiang ZHANG Fu bin |
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| Abstract: | This paper deals with the embryonic development of Radix auricularia The embryonic development stages were discontinuously observed and the specimens were collected once two hours or eight hours According to the external morphology, whole developmental course of the embryo can be divided into 7 stages as follows: cleavage stage, blastula stage, gastrula stage, trochophore stage, veliger stage, juvenile snail forming stage, hatching stage The paper describes the appearance feature of each stage and the time of the embryonic development of Radix auricularia and draws their forms |
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| Keywords: | Radix auricularia embryonic development appearance feature the stage of embryonic development the time of embryonic development |
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