东北小鲵(Hynobius leechii)属两栖纲有尾目，成体全长约100～120毫米，头长大于头宽，尾长短于头体长。该物种的模式产地在朝鲜远山姬辽宁丹东。
本文初步研究了环境温度与东北小鲵胚胎发育速度。 胚长增长速度、死亡率之间的关系。
The paper deals with the relationships between ambient temperature and speed of embryonic development, death rate , speed of increase of Hynobius leechii.
为探讨地域生态环境和气候等因素对胚胎发育的影响，对千山区和岫岩区东北小鲵胚胎发育进行了观察。
In order to probe into effects of zoology environment and weather on fetation of Hynobius Leechii Boulenger, we have observed fetation of Hynobius Leechii Boulenger in Xiuyan and Qianshan area.
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