About Cynomys leucurus Merriam, 1890
The white-tailed prairie dog (Cynomys leucurus Merriam, 1890) has a tan-brown body, large eyes, and a dark patch on the cheeks both above and below each eye. Adults of this species weigh between 28 and 53 ounces (790 to 1,500 grams), and measure between 12 and 16 inches (30 to 41 centimeters) in total length.