AYLOBATES 163 
seum, and which is entirely a pale yellow, a hue not infrequently seen 
among examples of H. Lar. 
Capt. Flower (l. c.) under the name of H. agilis says that, “in 
the Museum at Taiping there are specimens of both the black and 
light varieties from Larut, Perak. In April, 1898, when I was in the 
Larut Hills, a party of these Gibbons were to be seen daily in a group 
of high trees at about 3,200 feet elevation; every morning they com- 
menced calling at 6 A. M. and continued until 10.30 A. M. They 
must come down almost to the foot of the hills, as I have frequently 
heard them in the morning from Taiping, which is but little above the 
sea-level.”’ 
Tickell (1. c.) gives the following account of this species as 
observed by him in Tenasserim: “The HytopaTes Lar is found in 
great abundance in all the forests skirting the hills, which run from 
north to south through the Province of Tenasserim. They ascend 
the hills themselves up to an elevation of 3,000 to 3,500 feet above 
sea-level, but not higher, and are usually met with in parties of from 
8 to 20, composed of individuals of all ages. It is rare to see a solitary 
one; occasionally, however, an old male will stay apart from the flock, 
perched on the summit of some vast tree, whence his howls are heard 
for miles around. The forests which these animals inhabit, resound 
with their cries from sunrise to:about9 A.M. * * * During these 
vocal efforts they appear to resort to the extreme summits of the 
loftiest trees, and to call to each other from distant parts of the jungle. 
After 9 or 10 A. M. they become silent and are engaged feeding on 
fruit, young leaves, and shoots, and insects for which they will 
occasionally come to the ground. When approached, if alone, they will 
sometimes sit close, doubled up on a thick tuft of foliage, or behind 
the fork of a tree near the top, so screened as to be quite safe from 
the shot of the sportsman. But indeed when forced from its conceal- 
ment and put to flight, the Gibbon is not easily shot. It swings from 
branch to branch with its long arms, shaking the bough all around, 
flings itself from prodigious heights into dense foliage, and is quickly 
concealed from view by intervening trees. 
“If hit, there is no animal more tenacious of life, and its efforts 
when desperately wounded to cling to the branch and drag itself into 
some fork or nook where to hitch itself and die, excite amusement 
and compassion. 
“The Gibbon (if we restrict that name to this species) is not nearly 
so light and active as its congener H. Hootock (the Tooboung of the 
Arakanese,) which latter species is not likely to vary in color, being 
