^ 



I. Kangaroo Rat (Perodipus) 



3. Cotton Rat (Sigmodon) 



j. Rice-field Mouse (Oryzomys) 



WESTERN AND SOUTHERN MICE AND RATS 



Photographed from skins to show relative proportions 



4. Harvest Mouse (Reithrodontomys) 

 <;. Pocket Mouse (Perognathus) 

 6. Scorpion Mouse (Onycomys) 



(About one-half natural size) 



