174 BULLETIN 57, UNITED STATES NATIONAL MUSEUM. 
lse at tip. Lower lip conspicuously divided in front. Calcar absent. 
Inter femoral membrane very narrow, extending to middle of tibia. 
Tail about half as long as femur, included to middle in inter femoral 
membrane. 
Species examined. — Phyllonycteris poeyi Gundlach. 
Remarks. — Superficially this genus might be mistaken for a mem- 
ber of the Glossophaginae, but it is readily distinguishable by the 
absence of the calcar and by the narrow interfemoral membrane 
which does not extend below middle of tibia. The structure of its 
teeth is strikingly peculiar as compared with that in any of the 
Glossophagine bats. 
Genus REITHRONYCTERIS Miller. 
1898. Reithronycteris Miller, Proc. Acad. Nat. Sci. Philadelphia, p. 333, 
July 12, 1898. 
1904. Rhithron ycteris Elliot, Land and Sea Mammals of Middle America 
and the West Indies, p. 687. 
T ype-speeies. — Reithronycteris aph- 
ylla Miller. 
Geographic distribution. — Jamaica. 
Number of forms. — Only the type 
species is thus far known. 
Characters— Similar to Phyllo- 
nycteris ^ but floor of brain case ele- 
vated out of its usual position, so 
that roof of posterior nares is formed 
by two longitudinal folds given off 
probably by the pterygoids and 
nearly meeting in median line in re- 
gion usually occupied b}^ basisphe- 
noid and presphenoid. 
. Species examined —Reithronycte- 
ris aphylla Miller. 
Remarks. — Through the kindness 
of the authorities of the Jamaica 
I have been enabled to re- 
examine the type of Reithronycteris 
aphylla , the only specimen by which the genus and species is known. 
I can therefore correct two inaccuracies in the original account: 
The tail is, like that of Phyllonycteris , only half as long as the 
femur, and the teeth do not in the least resemble those of Braehy- 
phylla. The teeth, though slightly injured by decalcification, are 
evidently similar to those of Phyllonycteris poeyi , an animal with 
which I was not acquainted in 1898. The following differences may 
be noted : There is less contrast in both diameter and height of the 
upper incisors, the four teeth stand in an almost straight row, and 
Fig. 25.— Reithronycteris aphylla. Adult 
male. Type, No. 9, Museum, Institute of Institute 
xlf. 
Jamaica. 
