December 29, 1961. 7. Taxonomic status of some mice of the peromyscus boylii group in eastern Mexico, with description of a new subspecies.
"A Review of the Middle American Tree Frogs of the Genus Ptychohyla"
William E. Duellman
It is of interest that a relict population of peromyscus leucopus also occurs in Deer Draw.
"Mammals of Northwestern South Dakota"
Kenneth W. Andersen
The assumption that variation in R. megalotis paralleled in degree that of other species, peromyscus maniculatus for example, led to untenable taxonomic conclusions by some previous workers.
"Geographic Variation in the Harvest Mouse, Reithrodontomys megalotis, On the Central Great Plains And in Adjacent Regions"
J. Knox Jones B. Mursaloglu