BLAINVILLE'S BAT , 
329 
most extraordinary species of the whole order (see figure). The skull itself is of curious structure, the 
cranial portion, or that containing the brain, being so much elevated, that its height is nearly equal 
to the whole length of the skull, and its front wall 
descends in such a manner as to form nearly a right 
angle with the bones of the face (see figure). The 
superficial structures belonging to the face and head 
are so complicated as almost to defy description, and 
so grotesque that one might recommend their study to 
the inventors of demon-masks for pantomimic purposes. 
The ears are of considerable size, and have their mar- 
gins notched in several places ; they sweep round on the cheek, to terminate at a short distance from 
the angle of the mouth, and have their inner margins joined by a fold of membrane. The tragus is 
a thick, more or less lobulated organ. The nostrils are round apertures in the extremity of the snout , 
SKULL ( Natural Size ) AND dentition ( Enlarged ) of 
blainville’s bat. 
BLAINYILLe’s BAT, (About Four-Jifths Natural Size. After Peters.) 
their margins are raised and naked, and produced above into small lobes. Between the nostrils there 
is a perpendicular ridge, and above this a small round papilla, on each side of which there is an 
irregularly kidney-shaped elevation. Behind these parts comes a large fold of skin, deeply notched in 
the middle above, which joins on each side with the middle of the membrane uniting the ears, and 
probably represents the hinder nose-leaf in some other Bats. The lower lip consists of two leaves, 
the upper of which forms in the chin a large shield-shaped, warty plate, beneath which the lower leaf 
and the skin of the throat form a complicated series of lobes. 
The teeth in this Bat consist of four incisors and a pair of strong canines in each jaw, two pre- 
molars in the upper and three in the lower jaw, and three molars, with more or less distinct W- 
shaped cusps on each side in both jaws (dental formula — incisors, | , canines, k=l, premolars, 
molars, ij ^). The wings are well developed, long, and broad, and the membranes descend to the 
