MONKEYS. 145 
marks of this genus, which comprehends the smallest 
Monkeys of the Old Continent, consist in a depressed 
forehead, with a facial angle of 50°; a flat nose, with the 
nostrils directed upwards and outwards; cheek-pouches, 
generally of large size; callosities behind; and a tail of 
considerable length. The individual before us, in addi- 
tion to these characters, is remarkable for the reddish 
brown colour of his upper parts, which gradually dis- 
appears in a lighter hue, mingled with a bluish tinge 
beneath; for the elevated and compressed toupet which 
advances considerably forwards on his forehead; for the 
hairs which are thinly scattered over his livid face; and 
for the spreading tufts of a somewhat lighter colour 
which occupy the sides of his head and face posteriorly. 
The animal which occupies the right hand in the cut 
appears to be the young of the Macacus cynomolgus, 
Cuv., the Common Macaque; or rather perhaps, if the 
colour of the face is to be regarded as affording a suffi- 
cient specific distinction, of a new species lately described 
by M. F. Cuvier under the name of Macacus carbona- 
rius. The Macaques are characterized by the greater 
elongation of their muzzles, which reduces their facial 
angle to 40° or 45°; by the strong developement of their 
superciliary ridges; by the oblique position of their 
nostrils in the upper surface of their nose; and by the 
presence of cheek-pouches and callosities. The young 
animal figured is blackish brown above, and, as is very 
common among the Monkeys, lighter and of a bluish 
cast beneath; his hands and face are nearly black; the 
hairs which cover his forehead form a thick tuft advanc- 
ing forwards; and his face is almost naked. 
We have little hesitation in referring the left hand 
L 
