One adult male examined for ectoparasites harbored a tick, dermacentor andersoni Stiles, and fleas, Monopsyllus eumolpi Rothschild.
"Mammals of Northwestern South Dakota"
Kenneth W. Andersen
Four larval Ixodid ticks, dermacentor possibly variabilis, were removed from the pinnae of the ears of a live specimen of cansensis from 3 mi.
"Natural History of the Brush Mouse (Peromyscus boylii) in Kansas With Description of a New Subspecies"
Charles A. Long