ILLUSTRATIONS. 



PLATES. 



Plate T. Striped. Spermophile (Spermophilus tridecemlineatus) 



II. Franklin's Spermophile (Spermophilus fran Mini) 



III. Richardson's Spermophile (SpermoirtiUus richardsoni) 



Frontispiece. 



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MAPS. 



Map 1. Distribution of the Striped Spermophile (Spermophilus tridecemlineatus). 

 2. Distribution of Franklin's Spermophile (Spermophilus franldini). 

 r3. Distribution of Kennicott's Spermophile (Spermophilus spilosoma ob- 



soletus) and the Mexican Spermophile (Spermophilus mexicanus). 

 4. Distribution of Richardson's Spermophile (Spermophilus richardsoni) 



and the Wyoming Spermophile (Spermophilus richardsoni elegans). 



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