A New Subspecies of Bat (Myotis velifer) from Southeastern California and Arizona

"A New Subspecies of Bat (Myotis velifer) from Southeastern California and Arizona" by Terry A. Vaughan is a scientific publication written in the mid-20th century. This work focuses on the identification and classification of a new subspecies of bat, specifically detailing its characteristics, distribution, and ecological adaptations. It adds to the understanding of bat biodiversity within the regions of California and Arizona. The document discusses the newly named subspecies, "Myotis velifer brevis", based on the study of specimens collected in various locations. Vaughan provides a thorough comparison of this subspecies with other recognized forms, examining differences in size, color, and skull structure. The observations also note the ecological adaptations of these bats and the lack of significant barriers that might restrict their gene flow. Measurements and descriptions of the specimens studied are presented, underscoring the distinct characteristics of "M. v. brevis" that justify its classification as a new subspecies. The publication is essential for researchers and enthusiasts interested in mammalogy and bat conservation.