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Morphological Identification of the East Asian Voles Alexandromys Species (Rodentia, Cricetidae) of Russia and Neighboring Territories

机译:俄罗斯及周边地区东亚田鼠亚历山大藻物种(啮齿类,蝉科)的形态鉴定

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摘要

The variation in the dimensions of the skull, hind foot and tail length, first lower molar morphotype, and skull cap structure was studied in museum specimens of all Alexandromys species that occur in Russia. Similar morphotypes of the molars and skull cap structure were observed in different species, and this hindered species identification. In many cases, one could distinguish between pairs of species with a probability greater than 0.95 using metric features. Use of the entire available set of traits, both metric and qualitative, is recommended for the identification of individual specimens.
机译:在俄罗斯发生的所有亚历山大大帝物种的博物馆标本中,研究了头骨尺寸,后脚和尾巴长度,第一个下臼齿形态和头骨帽结构的变化。在不同的物种中观察到类似的臼齿形态和头骨帽结构,这阻碍了物种的鉴定。在许多情况下,使用度量特征可以区分几对物种,概率大于0.95。建议使用整个可用的特征集(公制和定性)来鉴定​​单个样本。

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