The Beringian lemming or Beringian brown lemming (Lemmus nigripes) is a species of lemming found in Russia and North America.
Taxonomy
It was formerly considered conspecific with the Canadian lemming (L. trimucronatus) with both species being grouped together as the "North American brown lemming", but genetic studies have affirmed both as being distinct species from one another.[1]
Distribution
This species is found on both sides of the Bering Sea, and its distribution roughly coincides with the former landmass of Beringia, which it likely inhabited prior to its partial submergence.[2]