Mammalia of Southern Brazil. 
horse-shoe may 
be variable; and I observe some crenati 
Ion of the 
edge of the same 
in some specimens of the Vampyrops linca 
itus which 
is wanting in other specimens. 
9. Vampyrops l 
,INEATUS Geoffroy. 
Chapada. 
ID. Sturnira l: 
[LiuM Geoffroy. 
Chapada. 
EMBALLONURID^. 
II. MOLOSSUS R 
UFUS Geoffr. 
One specimer 
1 from Sao Joao. 
12 Nyctinomus brasiliensis Is. Geoffr. 
Four specime 
;ns from Sao Joao. 
13. Vesperus A1 
^GE sp. nov. 
Dentition i. 
f;c. 1; Pm. |;m.|. Inferior incisors 
trilobate, 
placed transversely to the mandible; superior incisors unequal, the 
external simple, narrow, not quite so long as either lobe of the inter- 
nal, and placed close to it and to the canine. " First " (second) in- 
ferior premolar much smaller than second, and in line with the latter. 
Ears much shorter than the head, when laid forwards reaching a 
short distance in front of eye, near the apex. Helix openly notched 
on the external margin, which is thus turned outwards and obtusely 
rounded. Tragus convex, separated from helix by a very open 
emagination. Antitragus elongate lanceolate, with the greatest 
width near the middle, and with a rounded lobe at the external base. 
Lateral swellings of the muzzle large, covered with sparse hair. At 
their anterior extremity and just above the nostril is a deep fossa 
which is connected by a groove with the nostril, giving the appear- 
ance when closed of an oblique slit-like nostril, as in V. platyrhinus 
of Dobson. No tubercles on the soles. Interfemoral membrane in- 
closing all the caudal vertebrae, which terminate in a short free ca- 
tilaginous apex. Wing membrane to base of hallux. Calcaneum long; 
postacakaneal lobe distinct, narrow. Tibia elongate. Fur extend- 
ing on the wing membranes by a narrow border only above and be- 
low, not extending on interfemoral membrane. Antebrachial mem- 
brane not reaching middle of fore-arm. 
Color above dark brown tinged with reddish; below similar, the 
hairs with lighter brown tips. Inferior side of intertetnorai mem- 
