78 VERTEBRATES I MAMMALS. 



NOCTILIONIM: OR BULLDOG BAT FAMILY. This 

 Family is made up of bats which have the wing mem- 

 branes narrow, the muzzle short, and in many cases cleft, 

 and the ears small and separated, and which are des- 

 titute of membraneous nasal appendages. They are 

 mainly confined to tropical countries. 



The Genus Nyctinomus, represented by one species, is 

 found from Texas to California. 



VESPERTILIONIM: OR COMMON BAT FAMILY. This 

 Family includes bats which are without leaf-like nasal 

 appendages, and which have ample wing membranes, the 

 tail in nearly all cases inclosed in the interfemoral mem- 

 brane, and the incisors two or four above and six beneath, 

 and the nostrils subelliptical. This is a large family, and 

 its members are widely distributed. Six genera and 

 about twenty species are found in North America. 



The Genus Lasiurus contains some of our most com- 

 mon species. The Red Bat, L. noveboracensis, Tomes, is 

 three or four inches long, and has a spread of wings of 

 ten to twelve inches. The color is reddish. The Hoary 

 Bat, L. cinereus, Allen, is over four and a half inches 

 long, and the spread of wings over fifteen inches. The 

 color above is brownish chocolate, and the hairs are 

 tipped with white. 



SUB-SECTION VII. 



THE ORDER OF INSECTIVORA, OR INSECT-EATERS. 



THE Order of Insectivora is made up of mammals 

 which feed wholly or mainly upon worms and insects. 

 Fi 6 ^ Their incisors and canines vary 



in proportion and relative po- 

 sition, and their molars are 

 studded with acute points. 

 There are five families : the 

 Galeopithecidae or Dermoptera, 

 the Scandentia or Climbers, as 



Teeth of an Insectivorus Animal. . -p. . r , T ,. 



the Hanxnngs ot the Indian 



