文县疣螈早期胚胎发育

Early Embryonic Development of Tylototriton wenxianensis

对湖南省怀化市黄岩地区的文县疣螈(Tylototriton wenxianensis)早期胚胎发育进行了观察。整个胚胎发育分为21个时期,在实验室19～21℃下,受精卵完成胚胎发育历时(513.30±7.93)h(n=8);本文描述了各时期的形态特征,并讨论了与其他有尾类胚胎发育的异同,以及怀化产文县疣螈与甘肃产文县疣螈的主要区别。

This paper reported the early embryonic development of Tylototriton wenxianensis from the Huangyan Area,Huaihua City,Hunan Province.The embryonic development was divided into 21 periods.Under the condition of temperature 19-21℃ in the laboratory,the fertilized eggs completed embryonic development in 513.30 ± 7.93 h（n = 8）.The morphological characteristics of each period was described,and the similarities and differences compared with other caudates as well as the major differences between Tylototriton from Huaihua of Hunan Province and Tylototriton from Wenxian of Gansu Province were discussed.