CHEIROPTERA. 25 



zle without leaf or other appendages, the incisors two to 

 four above, six beneath, and the tail involved in the mem- 

 brane. This is the most numerous genus of all, its spe- 

 cies being found in all parts of the world. A half-dozen 

 or more North American bats are usually referred to this 

 genus. 



The Red Bat, V. noveboracensis, Linn., is three to four 

 inches long, with a spread of wings of ten to twelve 

 inches ; color reddish tawny. 



The Hoary Bat, V. 

 pruinosus, Say, is over 

 four and a half inches 

 long, the spread over 

 fifteen inches ; color 

 grayish above, the 



throat with a fawn- 

 Hoary Bat, V. pruinosus, Say. 



colored band. 



The Little Brown Bat, V. snbulatus, Say, is over three 

 inches long, the spread nine inches ; color olive-brown 

 above, grayish beneath. 



The Silver-Haired Bat, V. noctivagans, Le Conte, is 

 about three and a half inches long, spread ten to eleven 

 inches ; the color black, with a whitish collar across the 

 shoulders. 



The Carolina Bat, V, carolincnsis, Geoff., is nearly four 

 inches long, the spread twelve inches, and the color chest- 

 nut. 



V. monticole, Bach., of a fulvous color, and V. virginia- 

 mis, Bach., sooty brown, are additional species, from Vir- 

 ginia. 



The Genus Molossus, comprising M. cynoccphalus and 

 M. fuliginosns, Cooper, of the Southern States, is char- 

 acterized by a large head and muzzle, canines two to four 

 in the upper jaw, none in the lower, and bifid upper in- 

 cisors. 



2 



