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 (5. carolinensis) . The little flying squirrel 

 (Sciuropterus volans) is abundant in the Eastern States. 

 The shrews and moles (Insectivora). — The shrews 



