PRAIRIE-DOG 



'IG. 51. Distribution of the species of the subgenus Leuco- 

 crossuromys, after HolHster 



1. Cynomys leucurus 



2. Cynomys parvidens 



3- Cynomys gunnisoni gunnisoni 



4- Cynomys gunnisoni zuniensis 



itltSj"' ^^^ ^^"^^^ ^^^ ''^''^ °f ^' 3. and 4 a little too far to the 



