1914] Grinnell: Mammals and Birds of the Colorado Valley 



89 



Neokma se 



\Peromyscus 



■kUf, 



■Perognaftus penicilktus 



Dpodonys 



Ammospermoph/fus leucurus 

 A/eotcma desertorum 

 Perognafhus sptnafus 

 ^ercgnafhus for 



