392) ELEMENTARY ZOOLOGY 



turnal, hanging- head downward by their hind claws in 

 caves, hollow trees, or dark rooms through the day. They 

 feed chiefly on insects, although some foreign kinds live 

 on fruits. There are a dozen or more species of bats in 

 North America, the most abundant kinds in the Eastern 

 States being the little brown bat {Myotis subulatns), about 

 three inches long with small iox-like face, high slender 

 ears, and a uniform dull olive-brown color, and the red 

 bat (Lasiurus borealis), nearly four inches long, covered 



FIG. 153. The hoary bat, Lasitirus cinereus. (Photograph from life 

 by J. O. Snyder.) 



with long, silky, reddish-brown fur, mostly white at tips 

 of the hairs. 



The dolphins, porpoises, and whales (Cete). The 

 dolphins, porpoises, and whales (Cete) compose an order 

 of more or less fish-like aquatic mammals, among which 



