Dr. Anderson noticed it in the valley of the Tapeng in the centre of the Kakhyen Hills, in troops of thirty to fifty, in high forest trees overhanging the mountain streams. Being seldom disturbed, they permitted a near approach.
[NO. 11. SEMNOPITHECUS vel PRESBYTES PHAYREI.]
Syn.—SEMNOPITHECUS CRISTATUS.
The Silvery-Leaf Monkey (Blyth).
HABITAT.—Arracan, Malayan Peninsula, Sumatra, Borneo.
DESCRIPTION.-Colour dusky grey-brown above, more or less dark, with black hands and feet; a conspicuous crest on the vertex; under parts white, scarcely extending to the inside of the limbs; sides grey like the back; whiskers dark, very long, concealing the ears in front; lips and eyelids conspicuously white, with white moustachial hairs above and similar hairs below.
SIZE.—Two feet; tail, 2 feet 6 inches.
This monkey was named by Blyth after Captain (now Sir Arthur) Phayre, who first brought it to his notice; but he afterwards reconciled it as being synonymous with Semnopithecus cristatus. The colouring, according to different authors, seems to vary considerably, which causes some confusion in description. It differs from an allied species, S. maurus, in selecting low marshy situations near the banks of streams. Its favourite food is the fruit of the Nibong palm (Oncosperma filamentosa).
[NO. 12. SEMNOPITHECUS vel PRESBYTES OBSCURUS.]
The Dusky-Leaf Monkey.
HABITAT.—Mergui and the Malayan Peninsula.
DESCRIPTION.—Adults ashy or brownish black, darker on forehead, sides of face, shoulder, and sides of body; the hair on the nape is lengthened and whitish. The newly-born young are of a golden ferruginous colour, which afterward changes to dusky-ash colour, the terminal half of the tail being last to change; the mouth and eyelids are whitish, but the rest of the face black.
SIZE.—Body, 1 foot 9 inches; tail, 2 feet 8 inches.