! 5 2 
APES AND MONKEYS. 
hair on tlie crown of the head is nearly flat, and directed backwards; this 
form having: been described as 0. dpella. In the other variety, as shown in 
the left-hand figure of the accompanying engraving, the hair on the sides of 
the crown of the head is lengthened, so as to form a pair of more or less 
distinct longitudinal crests; this variety being hence known as the horned 
sapajou. 
Although subject to great individual variation in this respect, the general 
colour of the thick and rather harsh fur is reddish-brown, becoming darker on the 
middle of the back, as well as on the legs and tail. The fore-arms, together with a 
THE HORNED SAPAJOU AND THE WEEPER SAPAJOU (£ liat. size). 
broad spot on the crown of the head and the whiskers, are nearly or quite black; 
while the front of the shoulders is yellowish. It is on either side of the dark spot 
on the crown of the head that the crests are situated in the “ horned ” variety. 
The face and other naked parts have a violet tinge. 
This sapajou has been long known to science, a specimen having been exhibited 
in the King’s Menagerie at Paris soon after the middle of the last century, and 
described by the French naturalist Brisson. Another example, described by 
Frederic Cuvier, was exhibited in the same collection in the year 1820. It is in 
winter, when the fur is longest, that the crests of the “ horned ” variety become 
most prominent; these never making their appearance until the animal has cut its 
