The systematics ofMicrotus (Terricola) saviigroup: an odonthometrical perspective (Mammalia, Rodentia, Cricetidae)

The morphology of the first lower molar ofMicrotus saviigroup (M. brachycercus, M. nebrodensis, M. savii) is complex and highly variable. A morphometrical analysis done by grouping the samples into large geographical sets reveals the differentiation between northern, central and southern populations. The specific status ofM. nebrodensisis confirmed while it is not possible to separateM. brachycercus. The subspeciesM. savii tolfetanusandM. brachycercus niethammericusare, respectively, not well and moderate distinguished from the other populations. Finally, the distinction ofM. saviigroup from other species of European voles is also confirmed.