246 - ON THE GLOSSOPHAGIN A. 
Based on skins of two adults: No. 9525, U.S. N. M., La Guayra, Venezuela ;* and 
No. 9522, U.S. N. M., co-types. 
No. 9525, U.S. N. M., fur soft, shrew-lke; dull ash at basal two-thirds, sooty at 
apical third; it extends along the entire length of the dorsifacial region. No. 9522, 
U.S. N. M., quite the same, but is dark brown instead of sooty. 
The skull + closely resembles that of G. soricina, but is smaller and thinner walled. 
The ascending process of the-zygoma is longer and more pointed than in the species just 
named; the palatal notch is less acute. The fronto-maxillary inflation is conspicuous. 
The symphysis menti is carinate. The angle of the lower jaw projects backward slightly 
beyond the line of the condyloid process. The brain case is 12 mm. and the face 7 mm. 
long. 
The upper central incisors broad with slightly concave cutting edges; the lateral 
incisors are narrow with oblique cutting edges. The premolars are slightly separated 
from one another and the second premolar from the first molar; they are compressed, 
subequal, and triangular ; the second premolar is thickened posteriorly. The other teeth 
closely resemble those of G. soricina. ‘The first upper molar is longer than the second 
and the second longer than the third; there are no ridges extending from the paracone 
to the metacone. The third upper molar does not overlap the second molar at the buccal 
border. 
The muscle fascicles and nerve markings of the endopatagium disposed as in 
G. soricina. This system is the weakest of any of the group of the Glossophagi. The 
terminal cartilages are throughout terete. — 
On the whole the descriptions of Pallas and of Geoffroy agree well with Glossophaga 
soricina of Peters’ revision, and exclude those specimens here embraced under G. true. 
In Geoffroy’s figure { the measurements of the nose leaf agree with those of G’. soricina, 
but the shape of the tragus and internal basal lobe of the auricle are like those of the 
form under consideration. But the figure is evidently based upon a dried specimen. 
The isolation of the premolars in G. true: answer fairly well to the arrangement of 
the teeth in an old example of G. soricina. This is an interesting fact, inasmuch as it 
suggests that senile characters in one species may be the same as those found in young 
adult life of another. 
The following proportions are noteworthy: The first phalanx of the third digit is 
longer than the second. The third metacarpal bone is as long as the forearm. The 
*Tt is not certain that the locality here given is the correct one. The record in the National Museum catalogue is 
imperfect. 
+ In addition to the skull in the type specimens, I possess a skull from Brazil presented by the late Mr. Harte, 
which answers to the above description. 
{ Ann. du Mus., 1810, XV, Pl, XI. 
