The montane water vole (Arvicola scherman) is a species of vole found throughout Europe, from the mountains of northern Spain through central Europe and eastwards through to central Romania.
Initially regarded as a species, it was reassigned as a subspecies of terrestris before being again designated as a species by Panteleyev in 2000.
The American Society of Mammalogists treats it as a synonym of Arvicola amphibius.
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