Species of rodent
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The Northern Baja deer mouse (Peromyscus fraterculus) is a species of deer mouse native to Southern California and the Baja California peninsula as well as several islands in the Gulf of California. "P. fraterculus" was previously considered a subspecies of the cactus mouse ("Peromyscus eremicus") prior to a 2000 study which identified genetic differences and suggested "P. fraterculus" is more closely related to Eva's desert mouse ("P. eva") than to "P. eremicus".
References.
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