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
自受精卵期至鰓蓋完成期共分為26個時期，其發育歷程及各時期
胚胎外形特徵與黑斑
蛙基本相似，但孵化期比黑斑
蛙推遲三個
胚期而早於澤
蛙，在水溫（ 20 0 . 5 ）及常溫（ 21 . 5 24 ）條件下，其
胚胎發育的全時程分別為212 . 94小時和170 . 95小時。
Using anatomical method, the gonadal development in postembryonic period of rana chensinensis, which had been migrated from northeast china, is studied
摘要採用解剖學方法，對南移后的中國林
蛙胚胎後期性腺發育進行了觀察。
The results showed that the gonadal development in postembryonic period of rana chensinensis was well - balanced, and the environment of guangdong is adapted to the gonadal development
結果表明，南移后的中國林
蛙胚胎後期的性腺發育基本正常，環境的變化並未對其產生不良影響。
Toxicity of heavy metal irons to embryos and larvae of rana nigromaculata
重金屬離子對黑斑
蛙胚胎及蝌蚪的毒性影響
The proteinase activity during early embryonic development of rana nigromaculata
黑斑
蛙早期
胚胎發育過程中蛋白酶活性
To find out, the researchers used drugs to increase and decrease the electrical activity in nerve cells of frog embryos
為了找出其它因素，研究者使用藥物來增加或降低
蛙胚胎神經細胞的電活動。
The postembryonic development of rana chensinensis which had been moved to south china were first studied in this paper
摘要首次對中國林
蛙在華南地區的
胚胎後期發育進行觀察研究。
The results showed that the environment of south china adapt to postembryonic development of the rana chensinensis and the higher temperature had no effects on the growth but it accelerated the embryonic development speed
結果表明：華南地區的環境條件基本適合中國林蛙的胚胎後期發育，較高的溫度加快了中國林蛙的胚胎發育進程，但對其生長尤明顯影響。
