196 



BRANCH VERTEBRATA. 



INSECTIVOROUS. 



BODY ABOVE BESET WITH SPINES. Terrestrial. Hedgehog. 



BODY WITHOUT SPINES. 



Terrestrial. Shrew. 

 Subterranean. Mole. 

 Arboreal. Colugo. 



FIG. .338. 



E rin a' ce us Eu ro'pe us. 

 Hedgehog. ( &.) 



The Hedgehog is not found in America. Mingled 



with its hair are prickly spines 

 (quills) firmly attached to the 

 skin, and so disposed that 

 when the animal rolls itself 

 into a ball they project in 

 every direction a mode of 

 defense which baffles the dog 

 and the fox. 



The Shrew's foot is not 

 formed for digging, indicating its habit of living above 

 ground. It has a long, 

 movable snout and 

 bristly tail.* 



The Moles are 

 adapted to a subterra- 

 nean life by having 

 small eyes hidden in 

 the fur, though capable 

 of being brought for- 

 ward for use ; acute hearing and smell ; velvet-like fur, 



FIG. 340. 



FIG. 339. 



So' rex thomp' son i. Thompson's Shrew. 



Skeleton of a Mole. 



* Cats and dogs often kill them, mistaking then for mice; but on account 

 Of their disagreeable odor refuse to eat them. They are exceedingly pugnacious, 



