【摘要】 研究了东北鼢鼠 (MyospalaxpsilurusnegansWang)标本 0 3779号 ,发现分布于大兴安岭以西 ,内蒙呼伦贝尔盟扎罗木得、白音查岗的东北鼢鼠与分布于大兴安岭以东 ,黑龙江省齐齐哈尔华安地区、泰来县东方红农场等地的东北鼢鼠存在显著的差异 ,可以初步认为西部的东北鼢鼠是 1个新亚种———蒙新亚种 ,该亚种体较长 ,体质量较大 ,尾长较短 (为体长的 1 /6) .上颌第 1臼齿内侧有 2个深凹刻 ,毛色较浅 ,掘洞能力强 ,形成的土丘形状、方式、生境不同更多还原

【Abstract】 Through the study of the 03779th object of Myospalax psilurus,found that Myospalax psilurus lying on the west slope of Daxinganling mountain is obviously different from the east slope.As it can initiatively think that Myospalax psilurus lying on the west slope is a new geographie isolate.Its body length is longer,body weight is higher,its tail length is longer.Its fur colour is lighter.It dig hole strongly.更多还原