94-] 245 [Allen. 
The sides of the skull {norma lateralis, fig. 3) show the pos- 
FiG. 3. 
terior half of the brain case sloping markedly toward the occiput, 
the superior semicircular line of wliich lies well down toward 
the base ; the bone below it inclining slightly toward the foramen 
magnum as in the pteropine bats. The anterior half of the brain 
case is convex, and the curve ends abiuptly at the level of the 
ethmoidal foramen. 
The nasal bones project at the anterior nasal ai)erture ; the 
horizontal and ascending limb of the lateral borders of this aper- 
ture are about equal. The ascending limb is slightly oblique and 
concave. The upper border of the wide zygoma is rugose at 
the position of the ascending process. The alveolar border of 
the maxillary is nowhere horizontal but inclined upward and for- 
ward from second molar and upward and backward for the short 
distance answering to this tooth. 
Tlie base of the skull {norma basilaris, fig. 4) exhibits a large 
Fig. 4. 
circular foramen magnum, a narrow oblique basilar process with 
deep lateral depressions. Tympanic bones small, half coverinix 
