Key Identification Features
- It is very similar to the hispid cotton rat, and was classified as part of the hispid cotton rat species until 1970, when genetic analysis confirmed that it is a distinct species.
- All deermice of this species have a distinct white underside and white feet.
- Peromyscus maniculatus has distinct subspecies.
- It has a distinct pale brown collar across its chest, as well as small ears, short legs, and a very short tail.
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