THE VERTEBRATES: MAMMALS 



247 



familiar rodent larger than most members of the order. 

 The chipmunks (fig. 128) and ground-squirrels are com- 

 monly known rodents found all over the country. They are 

 the terrestrial members of the squirrel family, the best known 



FIG. 128. Chipmunk. (Permission of Camera Craft.} 



arboreal members of which are the red squirrel (Sciurus 

 hudsonicus), the fox-squirrel (5. ludovicianus) , and the gray 

 or black squirrel (S. carolinensis) . The little flying squirrel 

 (Sciuropterus volans) is abundant in the Eastern States. 

 The shrews and moles (Insectivora).--The shrews 



