THUMBLESS MONKEYS. 
89 
to the Galla country, and that while they are known in the Amharic dialect of 
Central Abyssinia under the name of Focha; in the Tigre tongue they are called 
Grazer ( = Guereza). At this period, and even up to the date of Salt’s second journey 
into Abyssinia in the first quarter of this century, these animals were supposed to 
be a species of lemur. Ruppell, however, definitely assigned the guereza to its 
proper zoological position, and has left us an account of its habits, from which the 
following particulars are taken. 
The guereza is said to live in small companies, and usually inhabits the tallest 
trees it can find in the neighbourhood of running water. It is restless, and con¬ 
stantly on the move, but is said to be completely silent. The leaps which it takes 
from tree to tree are described as of tremendous length. It subsists mainly on 
various kinds of wild fruits, seeds, and insects; and it spends the whole day in 
collecting these, retiring to sleep high up in the trees. In Gojam, on the southern 
frontier of Abyssinia, it is common; and it is largely hunted for the sake of its 
fur, which is used for covering the shields of the Abyssinian soldiers. 
There are good grounds for believing that this monkey is the true callitlirix of 
the ancients, although this name is now applied in zoology to a totally different 
group of monkeys, as we shall see below. 
The Black Colob ( Colob-us satan as). 
In marked contrast to the pied coloration of the preceding species is the sable 
hue of the black colob, first described from specimens obtained at Fernando Po, on 
the West Coast of Africa, in 1838. 
The uniform black colour of this monkey, of which a representation is given 
in the right-hand figure of the woodcut on p. 90, suffices indeed to distinguish 
it at once from all its congeners. In addition to this black coloration, the crown 
of the head has a crest of long hair projecting over the temples and eyes; and the 
whiskers are long and expanded. The whole of the body is covered with long and 
rather coarse hair; but the tail is short-haired throughout the greater part of its 
length, and has no trace of a tuft at the end. The whole of the hair has a dull 
and shaggy appearance, recalling, as an earlier writer has observed, that of the 
sloth bear of India. The length of the head and body is 32 inches, while that of 
the tail reaches 40 inches. 
Although this species is mentioned by Du Chaillu as inhabiting Western 
Equatorial Africa, it is to be regretted that we have no record of its mode of life. 
The King Monkey (Colobus polycomus). 
The king monkey of Sierra Leone is one of the few colobs that have been 
exhibited alive in the Gardens of the London Zoological Society, a single specimen 
having been purchased in the spring of 1873. It has no crest on the head, but a 
long mane on the throat and chest; the hair of the sides of the body being likewise 
long. The general colour is black, but the mane, the forehead, and the sides of the 
face, as well as the whole of the tail, are of a dazzling white. The tail has a well- 
marked tuft at the end; and the entire coat of hair is very glossy. 
