Left lateral view of the buccal surface of the mandible of catalog number USNM 146, a Peromyscus maniculatus sonoriensis or Western Deer Mouse specimen, from the Mammals collections at the Smithsonian Institution's National Museum of Natural History in Washington, D.C. This type specimen was collected by J.H. Clark from Santa Cruz, Sonora, Mexico, in September 1851., , Catalog record EZID: http://n2t.net/ark:/65665/3cfeb1f00-e666-4764-a3c2-e4ff8c221d84
