Peromyscus polionotus niveiventris

southeastern beach mouse
FWS Focus


The Southeastern beach mouse is the largest beach mouse; it averages 139 millimeters in total length and 52 millimeters in tail length. Although it is darker and more buffy than the Anastasia Island beach mouse, it is still lighter than most inland subspecies of the oldfield mouse.

Scientific Name

Peromyscus polionotus niveiventris
Common Name
southeastern beach mouse
FWS Category

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Identification Numbers



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