670 CHIROPTERA 
separate. This genus is represented by a single species, C. torquatus, 
of large size (forearm 3:1 inches) and peculiar aspect, inhabiting 
the Indo-Malayan subregion. This Bat is nearly naked, a collar 
only of thinly spread hairs half surrounding the neck; and is 
further remarkable for its enormous throat-sac and curious nursing- 
pouches. The former consists of a great semicircular fold of skin 
forming a deep pouch round the neck beneath, and concealing the 
orifices of large subcutaneous pectoral glands, which discharge an 
oily fluid of insufferably offensive smell. The nursing-pouch is 
formed on each side by an extension of a fold of skin from the side 
of the body to the inferior surfaces of the humerus and femur. In 
the anterior part of this pouch the mamme are placed. 
Molossus.:—Dentition : 7 a ci,p , m2; total 24 or 28. 
Upper incisors close together in the middle line. There are some 
ten species, restricted to the tropical 
and subtropical regions of the New 
World. The woodcut of the head of 
M. glaucinus (Fig. 315) exhibits the 
general physiognomy of the Bats of 
this genus. IM. obscurus, a small species, 
is very common in tropical America. It 
inhabits the hollow trunks of palms and 
other trees, and also the roofs of houses. 
The males and females live apart (as, 
indeed, appears to be the case in most, 
Fic, 315.—Head of Molossusglaucinus. if not in all, RPECIES of Bats). In the 
(Dobson, Proc. Zool, Soc. 1876.) hollow trunk of a palm two colonies 
were discovered, one consisting of from 
150 to 200 individuals, exclusively males, while the other was 
composed almost entirely of females. 
Nyctinomus.2—Dentition : ts cap a, m %; total 32 or 
28. Upper incisors separated in the middle line. The genus con- 
tains about twenty-five species, inhabiting the tropical and sub- 
tropical parts of both hemispheres. The lips of the Bats of this 
genus are even more expansible than in Jfolossus, in many of the 
species (as in the woodcut of the head of NM. macrotis, Fig. 
316) showing vertical wrinkles. NV. twniotis, one of the largest 
species, alone extends into Europe, and has been taken as 
far north as Switzerland. NN. johorensis, from the Malay Penin- 
sula, is remarkable from the extraordinary form of its ears. 
NV. brasiliensis is nearly as common as Molossus obscwrus in tropical 
America, and extends farther north (California) and south than 
that species, 
1 Geoffroy, Ann. du Muséwm, vol. vi. p. 154 (1805). 
* Geoffroy, Descript. de U Egypte, vol. ii. p. 114 (1812). 
