


WESTERN AND SOUTHERN MICE AND RATS 
Photographed from‘skins to show relative proportions 
1. Kangaroo Rat (Perodipus) 4. Harvest Mouse (Retthrodontomyzs) 
2. Cotton Rat (Sigmodon) 5. Pocket Mouse (Perognathus) 
3. Rice-field Mouse (Oryzomys) 6. Scorpion Mouse (Onycomys) 
| (About one-half natural size) 
