Stein Barbara R
Museum of Natural History, The University of Kansas, Lawrence, Kansas 66045.
J Morphol. 1986 Mar;187(3):321-342. doi: 10.1002/jmor.1051870305.
A comparative study of four genera of arvicolid rodents (Clethrionomys, Eothenomys, Alticola, and Synaptomys) presents the first complete description of limb myology for any member of this recently evolved, highly successful family. The study also identifies four forelimb and four hind-limb muscles that exhibit characters of value to systematic analyses within the group. In no instance was postcranial myology sufficient to distinguish among species of Clethrionomys or to distinguish Clethrionomys from Eothenomys. Moreover, in some instances Synaptomys, a genus traditionally presumed primitive within the family, possessed the apomorphic condition for a myological character when compared to the four genera of cricetine rodents that served for outgroup comparisons.
一项对四种田鼠科啮齿动物（红背䶄属、洮州绒鼠属、高山䶄属和沼泽田鼠属）的比较研究首次完整描述了这个近期进化且非常成功的家族中任何一个成员的肢体肌肉学。该研究还识别出四条前肢肌肉和四条后肢肌肉，这些肌肉展现出对该类群内系统分析有价值的特征。在任何情况下，颅后肌肉学都不足以区分红背䶄属的物种，也无法将红背䶄属与洮州绒鼠属区分开来。此外，在某些情况下，与用作外群比较的四种仓鼠科啮齿动物相比，传统上被认为是该家族中原始属的沼泽田鼠属，在肌肉学特征方面具有衍征状态。
