Abstract: A new classification scheme of the Myospalacinae on the generic level is proposed mainly based on the interparietal existed or absent, the occiput flat, convex or concave, and the molar rooted or rootless. The classification keys of the Myospalacinae: I. Interparietal existed; occciput convex; molars rooted···················Tribe Prosiphneini Leroy, 1940 Ia..Interparietal is quadrilateral and locates posterior to the lambdoid crest. On m1, the bra2 is opposite to the lra3, and parameters a, b, c, d and e are 0.0-0.5, 0.0-1.8, 0.3-1.6, 0.0-1.4 and 0.0-1.0 respectively········································Genus Prosiphneus Teilhard de Chardin, 1926 Ib..Interparietal is fusiform and locates between two wings of the lambdoid crest. On m1, the bra2 is opposite to the lra3, and parameters a, b, c, d and e are 0.0-0.3, 0.5-3.2, 0.7-3.3, 1.3-5.5 and 0.0-4.5 respectively······················································Genus Pliosiphneus Zheng, 1994 Ic..Interparietal is semicircle-shaped and locates anterior to the lambdoid crest. On m1, the bra2 located posterior to the lra3, and parameters a, b, c, d and e are 0.0-0.5, 1.8-4.0, 1.4-3.2, 1.6- 5.2 and 0.7-4.9 respectively····················································· Genus Chardina Zheng, 1994 II. Interparietal disappeared; occiput convex, flat or concave; molars rooted or rootless ················································································Tribe Myospalacini Miller & Gidley, 1918 II-I..Upper occiput locates posterior to the lambdoid crest, molars rootless, anterior enamel absent on m1 and the lra3 very shallow (convex occiput) II-Ia..Lingual reentrant (salient) angles on upper and buccal reentrant (salient) angles on lower molars are strong. The lra4 absent on m1······························ Genus Eospalax Allen, 1938 II-Ib..Lingual reentrant (salient) angles on upper and buccal reentrant (salient) angles on lowermolars are weak. The lra4 exists on m1 ·······················Genus Allosiphneus Kretzoi, 1961 II-II. Upper occiput locates anterior to the lambdoid crest (concave occiput) II-IIa..Molars rooted. The bra 2 on m1 locates posterior to the lra3 and parameters a, b, c, d, and e are 0.4-7.2, >1.8-8.0, 2.1-7.5, 1.7-7.9 and 1.1-8.0 respectively ··················································································Genus Mesosiphneus Kretzoi, 1961 II-IIb..Molars rootless. The anterior enamel band on m1 exists and the bra2 is opposite or posterior to the lra3 ············································· Genus Yangia (=Youngia) Zheng, 1997 II-III. Upper occiput locates at the same position with lambdoid crest (flat occiput) II-IIIa..Molars rooted. The lra 3 on m1 is shallower than the bra2 and parameters a, b, c, d, and e are 0.3->3.6, >3.7->6.8, >4.2->7.7, >3.3->8.2 and >3.9->7.6 respectively ····················································································· Genus Episiphneus Kretzoi, 1961 II-IIIb..Molars rootless. The lingual reentrant angles on m1 is very shallow and an anterior enamel exists······························································Genus Myospalax Laxmann, 1769 Myospalacines (including 10 species) from the Upper Miocene-Lower Pliocene red clay section (consisting of 12 layers) near the Dongwan Village consistute approximately one fourth of the known mammal forms listed by Liu et al. in 2011. Because Myospalacines occurred in a single section with precise stratigraphic or chronological data (~7.2-3.5 Ma), they are extremely significant to understand the phylogeny and evolutionary history of the subfamily in this period.

摘要： 根据头骨上间顶骨存在与否、枕盾形状和位置、臼齿带牙根与否以及带牙根臼齿的高冠程度等，将Myospalacinae分成2族9属。记述了甘肃秦安董湾剖面中的3种原鼢鼠：Prosiphneus licenti Teilhard de Chardin, 1926, P. tianzuensis(Zheng & Li, 1982)和P. eriksoni (Schlosser, 1924); 1种上新鼢鼠：Pliosiphneus cf. Pl. lyratus (Teihard de Chardin, 1942); 3种日进鼢鼠：Chardina sinensis (Teilhard de Chardin & Young, 1931), C. gansuensis n. sp.和C. truncatus (Teilhard de Chardin, 1942); 3种中鼢鼠：Mesosiphneus primitivus sp. nov., M.praetingi (Teilhard de Chardin, 1942)和M. intermedius (Teilhard de Chardin & Young, 1931)。修订了原鼢鼠属(Prosiphneus)、上新鼢鼠属(Pliosiphneus)、日进鼢鼠属(Chardina)和中鼢鼠属(Mesosiphneus)的属征。根据古地磁年代记录，探讨了Pr. eriksoni→Pliosiphneus cf. Pl.lyratus, Pr. eriksoni→C. sinensis, C. gansuensis→M. primitivus之间的进化关系。