This well-known mammal represents a genus, Cynomys, the name given by Constantine Samuel Rafinesque when he first described Cynomys socialis. For details, see
Don E. Wilson and DeeAnn M. Reeder, editors, Mammal Species of the World: A Taxonomic and Geographic Reference, 2nd ed., Smithsonian Press, 1993, page 424.
The image is protected by copyright. I thank photographer Bob Atkins for permission to use it and am pleased to refer to his website for other images of prairie dogs and much more.