532 STOMACH OF VAMPIRE . CHAP. XVI 
bloodsucking habit; but its use appears to be merely that of 
scooping out the soft imsides of fruits, upon which the Bat mainly 
lives. The incisors are only one on each side of the upper 
jaw. The really bloodsucking Bats of this family belong to the 
genera Desmodus and Diphylla. The former is the Vampire, the 
species being known as Desmodus rufus. These Bats have no 
tail; there is no true molar tooth; the canines are large, and the 
single pair of upper incisors quite caniniform, and very sharp and 
strong. These are the main teeth for aggression. In accordance 
with its diet of blood, the Vampire has a peculiarly modified 
intestine. The gullet is provided with a bore so small that 
nothing but fluid food could pass down it; the stomach is 
intestiniform in shape. 
