The eyes are small; the ears short and nearly hidden by the fur surrounding them. Characters useful in distinguishing this species from other Adirondack voles include fur color and texture, and tail length. The back and sides are auburn or chestnut; the throat, belly and feet are gray to buffy gray. The tail is about 25 mm (1.0 in) in length, slightly longer than the hind foot. Bog lemmings have shorter tails and shaggy fur; the other voles have longer tails.
A diminutive harvest mouse like R. montanus, but upperparts deep brown or gray, heavily mixed with black, especially on the mid-dorsal area; ears blackish all over rather than dark at the base and light at the tip; tail about as long as head and body, the dark dorsal and light ventral stripes about equal in width. Continue reading »