Although four species of harvest mice, Reithrodoniomyx, are known to occur in Arkansas, the distributional status of the genus in the state is poorly understood. Recent museum specimens significantly extend the range of R. megalotix and R. fulvescens in the state. R. megalotis is shown to range south through Phillips Co. in eastern Arkansas, and R. fulvescens is shown to range throughout most of the state, now including most of the Mississippi Alluvial Plain. A new specimen of R. humulis from Delaware Co., Oklahoma, suggests that this species probably ranges throughout northwestern Arkansas. R montanus remains known only from Washington Co. in northwestern Arkansas.
McDaniel, V. Rick; Huggins, John C.; Huggins, James A.; and Hinson, Michael W.
"Summary of the Status of Harvest Mice, Cricetidae: Reithrodontomys, in Arkansas,"
Journal of the Arkansas Academy of Science: Vol. 32
, Article 21.
Available at: https://scholarworks.uark.edu/jaas/vol32/iss1/21