346 
NATURAL HISTORY. 
LOWER INCISORS OF COLL GO. 
(Twice Natural Size.) 
the fore and hind feet, with the body and head hanging downwards, which is also a habit somewhat 
reminding ns of the Cliiroptera. 
The head in the Galeopithecus is tolerably broad and a little flattened ; the eyes are placed more 
laterally than in the Lemurs, and the orbits containing them form a bony 
ring which is interrupted behind. 
The teeth are very peculiar. In the upper jaw there are on each side 
two incisors, those of one side separated from those of the other by a very 
wide space. The foremost of these incisors on each side has a single root 
and a notched crown; the hinder one is pointed and implanted by two 
roots. The canine which follows also possesses two roots; and this is 
followed by a molar series of five teeth, each inserted into the maxillary 
bone by three roots, and having a crown with three, four, or five cusps. 
In the lower jaw, which has the condyle curiously produced outwards, we 
find again on each side a series of five molar teeth, and in front of these 
a long canine with two roots ; but the whole fore part of the jaw is occupied by six single-fanged 
incisors ; the crowns of these are nearly horizontal, broad, flat, and notched, the notching of the two 
middle pairs being so deep as to form a regular comb. This structure is exceedingly remarkable, and 
occurs in no other animals, the nearest approach to it being the slightly pectinated teeth in the 
Desmodont Bats. 
The teats in the Galeopithecus are situated on the sides of the breast, in the neighbourhood of the 
armpits. There is a pair on each side, placed close together, and on the same level. The female 
produces only a single young 
one at a birth, and the little 
creature, described by Mr. 
Wallace as at first very 
small, blind, and naked, 
clings closely to the breast 
of the mother, which is 
quite bare and very much 
wrinkled. Mr. Wallace sees 
in this adaptation of the 
region of the teats to the 
O 
wants of an exceedingly 
incomplete offspring, some 
trace of a remote relation 
to the peculiarities of the 
Marsupials. The stomach 
in this curious animal is of 
considerable size ; and the 
intestine is furnished with 
a sacculated csecum as long 
as the stomach. 
The Colugo varies con- 
siderably in colour, but is 
usually of an olive, brown, 
colugo. or blackish colour, mottled 
with whitish spots and 
blotches, which are said by Mr, Wallace to give it a resemblance to the colour of mottled bark, 
sufficient to render it difficult of observation. The lower surface of the body and membrane is of a 
tawny grey colour, and the whole of the fur which clothes the body and membranes is, although short, 
most exquisitely soft in texture. The length of the animal is about eighteen or twenty inches. 
The brain in the Galeopithecus is very small, and Mr. Wallace found it to possess such a. 
remarkable tenacity of life that it was killed with difficulty by any ordinary means. He describes it 
