1108 Marvels of the Universe 
gardener’s most promising flowers, and only with the strong morning light does it seek to hide in 
the traps that he has cunningly set nice and handy for it. 
GUEREZA MONKEYS 
BY R. LYDEKKER, F.R.S. 
TuE forests of Abyssinia are the home of a rather large black-and-white, long-tailed, and long-haired 
monkey known to the natives of the country as the Guereza. This monkey, which belongs to a 
rather large and exclusively Tropical African group of species characterized by the rudimentary 
condition or practical absence of the thumb, presents a very striking type of coloration, a band 
across the forehead, long tufts on the cheeks, 
and a mantle of still longer hair extending 
from the shoulders to the hind region of the 
flanks, as well as a long tuft clothing the 
terminal third of the tail, being glistening 
white, and thus forming a striking contrast to 
the deep black of the rest of the coat. This 
monkey ranges some distance southwards of 
Abyssinia, through the forests of East Africa ; 
but still further south, more especially in the 
neighbourhood of Mount Kilimanjaro, its 
place is taken by a closely-allied species, 
characterized by the still greater development 
of the white tufts and fringes, and accordingly 
known as the White-tailed Guereza. In this 
beautiful monkey the pendent white mantle is 
much longer and more extensive than in its 
Abyssinian relative, while the tail, which, with 
the exception of a very small section near the 
root, is wholly white, is clothed with very long 
drooping hairs, recalling the “flag” of a 
setter’s tail. On the other hand, the long 
tufts on the cheeks of the Abyssinian species 
have altogether disappeared, so that the head 
is covered only with short hair, which is white 
[bu Ff. Enock, F.LS. 
COMMON EARWIG. on the chest and throat. 
The Earwig is here shown with its wings fully extended, 
Returning to the Abyssinian species, it is 
interesting to note that there is a gradual 
gradation from this species, by means of various intermediate forms, to the Black Guereza of 
the forests of the West Coast. 
That such a striking type of coat and colouring as is presented by the White-tailed Guereza has 
some meaning and object can scarcely be doubted ; and explorers of the tropical forests of East 
Africa tell us that the long white mantle on the flanks and the heavily “‘ feathered’ tail have a 
protective value. For we are also told that the branches of the lofty forest-trees of the Kiliman- 
jaro district are clothed with great masses of a long pendent, greyish-white lichen, and that amid 
this luxuriant growth the troops of White-tailed Guerezas which make these forests their home are 
practically invisible. It is, in fact, a striking case of the protective resemblance of an animal to its 
inanimate surrounding ; and it is this which justifies the inclusion of these White-tailed Guerezas 
among “‘ Marvellous Animals.” 
and the wing-covers raised out of the way. 
