【摘要】 报道了金线蛙的早期胚胎发育。自受精卵期至鳃盖完成期共分为 2 6个时期 ,其发育历程及各时期胚胎外形特征与黑斑蛙基本相似 ,但孵化期比黑斑蛙推迟三个胚期而早于泽蛙 ,在水温 ( 2 0± 0 5)℃及常温 ( 2 1 5～ 2 4℃ )条件下 ,其胚胎发育的全时程分别为 2 1 2 94小时和 1 70 95小时。更多还原

【Abstract】 The early embryonic development in Rana plancyi was studied in constant water (20±0 5)℃ and natural temperature(21 5～ 24℃). The development process, from fertilized egg to spiracular formation can be divided into 26 stages, took 212 94 hours under the water temperature of (20±0 5)℃ and 170 95 hours under the natural temperature(21 5～24℃).The external morphological characteristics in various stages of the embryonic development were similar to those of Rana nigromaculata , but the hatching stage was later than that of Rana nigromaculata and earlier than that of Rana limnocharis .更多还原