ON THE GLOSSOPHAGIN #. 259 
Brachyphylla cavernarum Gray. 
The auricle lanceolate with shghtly convea margins, basal lobes rudimental. The 
tragus pointed, one-half the length of the inner margin of the auricle ; convex on thickened 
inner, and coarsely serrate on outer, margin. 
Nose leaf with entire nostrils and wide ectonareal flange ; erect portion of nose leaf 
rudimental—concaye and often minutely crenulate on midmargin. Supranarial margin 
concaye on either side of an obscure median ridge. Infranarial margin wide, continuous 
with upper lip and faintly incised. The basal gland-clump continuous across face—vertex 
back of nose leaf. The upper and outer parts are thick and bear a few coarse bristles, 
while the lower are thin and lost on the upper lip. ‘Twelve warts are arranged in pairs 
on the side of a mental V-shaped group, the median groove being shallow. Two median 
warts may be said to haye slight morphological significance. 
The fur above is yellowish white except the tip, which is brown. Below the tints 
are the same, but the shaft is more tawny and the tips much lighter. The distal third of 
the arm above and below is covered with hair. The distal half of the thigh is similarly 
covered. A sparse growth of hair is limited to the upper half of the dorsal surface of the 
interfemoral membrane. 
The calear is rudimental. The terminal cartilages of the fourth and fifth digits are 
uniform, elongated and scarcely wider at free margin than on the sides. The second 
interdigital space is almost devoid of pigment. The third space retains a vertical line for 
nearly its entire length, while the fourth exhibits one for about an inch near the free 
margin, the rest of the space being areolated. The endopatagium is furnished with 
numerous thick muscle fascicles ; near the tibia it is thick and leathery. 
Second interspace, Third interspace, — Fourth interspace, 
Pteral formula : 
3 mm. 19 mm. 35 min. 
The Skull—vThe walls of the skull are thin and permit the divisions of the brain to 
be discerned. The sagittal, pretemporal and occipital crests are well defined and tren- 
chant. The fronto-maxillary inflation is conspicuous and bears the pretemporal crest. 
The inner orbital wall is moderately conyex, and is marked by a conspicuous foramen. 
The infraorbital foramen is placed well in adyance of the orbit in line of the second 
premolar. The zygoma with a rudimental ascending process at the posterior third, but 
none anteriorly to contribute to the limitation of the orbit. 
Lower Teeth.—The incisors are stout, in continuous row. The palatal basal cusp is 
on level with the crown, which thus presents a broad, quadrate surface, marked in the 
middle from before backward by a ridge. Canine without conspicuous basal cusp. Pre- 
molars subequal, the first the smaller and triangular, the second with large basal cusp. 
