MAP 21— RANGE OF THE STRIPED GROUND-SQUIRREL AND ITS SEVEN RACES. 



Citellus tridecemlineatus (Mitchill). 



Founded on V'ernon Bailey's maps in the U. S. Biol. Survey, with other records by J. A. Allen, C. Hart Merriam, E. T. Seton, et al. 

 I he boundaries between the races are approximate. 



395 



