NATURAL HISTORY. 
120 
[n. zool. gal. 
they increase in age, they become very ferocious and spiteful; they 
grow to be four or five feet high, and are very strong. 
The remaining animals of this family have more or less elongated 
tails, which are entirely covered with hair, and are never prehensile like 
those of the American monkeys. 
The Capped Apes (Presbytina, Cases ) of Asia have a small 
head, which is in general furnished with a tuft of long hair. The 
limbs, hands and tails are elongated, the body is slender, and the thumbs 
of the fore hands are small and placed far back. Their stomach is 
lobulated, and the hinder grinder of the lower jaws is five-tubercled. 
The Long-nosed Monkey ( Nasica ) has an elongated nose like a 
proboscis ; the other Capped Apes ( Presbytis ) have a small nose. 
The Douc (P. nemceus) was formerly erroneously considered to be 
destitute of callosities, and was therefore formed into a genus under the 
names of Pygathrix and Lasiopyga. 
The Monkeys ( Cercopithecina , Cases ) have nearly the 
same form as the former, but their body is stronger, their limbs are 
shorter, and their face is rather more produced. They are playful 
when young, but become ferocious as they grow old. The Thumbless 
Monkeys ( Colobus ) have no thumb on the fore hand ; they are con¬ 
fined to Africa. The Colobus Guereza is peculiar for having the hairs 
on the upper part of the back much elongated, so as to fringe the sides 
of the body : the skin of this animal is used by the Abyssinians to form 
shields. The other genera have a distinct thumb to both the fore and 
hind hands. Some, as the Cercopitheci, have only four tubercles to the 
hinder grinder on each side of the lower jaw : they are found both in 
Africa and Asia. Others, as the Mangabeys ( Cercocebus) of Africa, 
and the Bonnet Apes ( Macacus ) of Asia, have five tubercles on the 
lower hinder grinders, and rather produced shelving faces, with the 
nostrils in the middle of the face; the Cercocebi have elongated hairy 
tails ; the Macaci have shorter tails, and their eye-brows very prominent. 
One, the Magot ( Inuus ), has only a very rudimentary tail. 
The Baboons or Dog-faced Apes ( Cynocephalina, Cases ) 
are so called because their noses are produced and cut off at the end 
like a dog’s. They have five tubercles to their lower hinder grinders, 
and are confined to Africa. Some have cylindrical tails, tufted at the 
end, as the Cynocephali. The Maimons have a very short tail, as the 
Mandril and the Dril; the former is peculiar for having the nose of the 
adult animals brightly coloured. 
The family of American Monkeys ( Cebidce, Cases ) differ 
from the Monkeys of the Old World, in their nostrils being wide apart, 
and as it were opened on the sides of the nose; they have no cheek 
pouches, they never have any callosities on the rump, and their tails, 
which are usually long and strong, are often prehensile, and used as a 
fifth hand, to assist them in climbing. They mostly have six grinders 
on each side of each jav r . 
Some have a truly prehensile tail, having a naked cartilage at the part 
beneath the tip. Of these the Atelina have very slender bodies and 
long limbs, like the' Long-armed Apes; some have no thumb on the 
fore hand, as the Spider Monkeys, Ateles and Brachyteles; and others, 
as the Negro Monkeys ( Lagothrix ), have a distinct thumb. They are 
slow, mild and gregarious, eating insects and fruits. 
