THE STRIPED SACK-WINGED DAT. 
313 
CUVIER’S FURY * 
A curious little South American Bat, described by F. Cuvier under the name of Furia liorrens , is 
of interest to the zoologist as one of the links between the two 
great groups of Microcliiroptera. It is remarkable for the form 
of its muzzle, which is somewhat Pig-like, cut off and turned 
up at the extremity, and bristling all over with hairs. The 
tragus is in the form of a barbed arrow-head ; and the thumb is 
exceedingly short, and entirely enclosed within the membrane, 
only the claw being left free. The canine teeth in the upper 
jaw are very peculiar, showing four points. This Bat is only 
about an inch and a half long. Its eyes are large and promi- 
nent, its nostrils surrounded by slightly -raised borders, and 
its chin bears eight white warts, seven running round the 
lip, while the eighth stands in the centre. The fur is soft, thick, and black. A second species 
of the genus, also from South America, is described by Mr. Tomes under the name of Fitrip- 
terus ccerulescens. Its fur is of a 
slaty blue tint. 
DENTITION OF STRIPED SACK- WINGED BAT, 
ENLARGED. ( After Peters.) 
WING OF STRIPED SACIC-WINGED BAT, FROM BELOW. 
in the upper jaw only two incisor teeth, which are small 
other and from the canines (see figure above). The lower 
canines are strong and sharp, especially the upper ones ; the 
first pre-molar is small, the second larger and acute, and the 
three true molars are large and strongly tubercular. The 
ears are of moderate size, and furnished with well-developed 
tragi. The interfemoral membrane occupies the whole space 
between the legs, and is stretched by a pair of long Spurs, 
between which the hinder margin is either straight or in- 
curved, and the basal portion of the short tail is enclosed 
in the membrane, from the upper surface of which its tip 
projects. The species of this genus are all American. 
THE STRIPED SACK-WINGED 
BAT.f 
The genus S 1 accepter yx is. 
readily distinguished from all 
others by the existence in the- 
membrane in front of the arm 
(the shoulder membrane or ante- 
brachial membrane) of a singular 
sac or pouch, which is situated 
on the lower surface of the mem- 
brane near the elbow, and opens- 
at the upper surface in a corre- 
sponding position. J This sac is. 
not peculiar to the males, but 
occurs in both sexes. There are 
and separated by an interval from each 
jaw has six incisors in a close row. The 
ARM OF STRIPED SACK-WINGED BAT, FROM ABOVE. 
The Striped Sack-winged Bat is rather a small species, 
measuring about two inches and a quarter from the tip of the nose to the base of the tail. Its fur is 
tolerably long, full, and lustrous, that of the upper surface dark brown, with two white streaks running 
* Furipterus horrent. + Saccoptermi biUncata. 
+ In one species, Sacco ptery x pheata, from Costa Rica, of which. Professor Peters makes his genus BuJantiopteryx, the sac 
is placed in the middle of the shoulder membrane. In this species, also, the facial part of the skull is inflated on each side. 
In S. canina and its allies the sac is in the margin of the membrane. These form the genus Perqpteri/x of Professor Peters. 
