New records of mammals from western Oklahoma

We report new locality records for 23 species of mammals from western Oklahoma collected during spring and summer 2005, 2006, and 2007. Of these records, four constitute range extensions for the documented distributions of these species in Oklahoma (Scalopus aquaticus, Microtus pinetorum, Neotoma floridana, Reithrodontomys fulvescens) and one is a range extension for North America (Baiomys taylori). Specimens were collected as part of a survey of 14 western Oklahoma Wildlife Management Areas. These records enhance our understanding of the distribution and natural history of mammalian fauna on the southern Great Plains.