This vole occurs in northern and central Sakhalin Island, Russia. Its upperparts are reddish brown, its underside grayish white, and its tail is sharply two-toned.
The fur on the head and upperparts is reddish brown, the underparts are whitish gray, and the tail is sharply bicolored.
It inhabits mainly shores and islands in peat bogs, and also occurs in salt marshes, meadows, and light forests. Burrows, nests, and feeding sites within family colonies are connected by paths and tunnels.
An extinction-risk assessment has not been added yet.