Yukon deer mouse

The Yukon deermouse or Yukon deer mouse is a species of rodent in the family Cricetidae. It is a species of the genus Peromyscus, a closely related group of New World mice often called "deermice". It is endemic to Yukon Territory in Canada. It is a currently unnamed species of deermouse (Peromyscus), related to Peromyscus maniculatus and Peromyscus keeni. The name "Peromyscus arcticus" has been used for it, but it does not apply to this species.