The parasitic rate of Ixodes persulcatus (54, 5%) on Apodemus agrarius and the parasitic index of Dermatcentor sih'artnn (17. 8) on Eulantias sibiricus are the highest.
The authors had collected 3 species of miniature mammals from habitat of Ranodon sibiricus, and researched interspecific relationship bet- ween Ranodon sibiricus and every miniature mammals.
在新疆北鲵栖息地捕获了三种小型兽类，并讨论了这三种小型兽类与新疆北鲵之间的种间关系。
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The paper is to illustrate the significance of Ranodon sibiricus rediscovery and to analyse the development of its species and its habitat environment, providing corresponding protective tactics.