Hedgehogs in the genus (Family Erinaceidae), which include two currently recognized species ( and ), are distributed from northeast Mongolia to the upper Amur Basin in Russia and adjacent areas in northeast and northern China. In recent years, a population of hedgehogs was discovered from Mt. Gaoligong, southwestern Yunnan, China, far from the known distribution range of the genus. Furthermore, these hedgehogs are the only known population to be distributed at elevations higher than 2 100 m and in sympatry with gymnures. To evaluate the taxonomic status of these hedgehogs, we examined specimens representing taxa in China and further conducted morphometric and karyotypic analyses. Our results supported the existence of four species in China. Specifically, we identified the hedgehogs from Mt. Gaoligong as a new species, sp. nov., and recognized , previously considered as a synonym of either or , as a distinct species. Interestingly, we observed a supernumerary M on all specimens of sp. nov., which is an extremely rare event in the evolution of mammalian dentition.
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| http://dx.doi.org/10.24272/j.issn.2095-8137.2018.034 | DOI Listing |
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