Closely allied to this splendid monkey, if indeed it be not a pale variety, as we strongly suspect, is a Semnopithecus, several specimens of which were brought by the late Sir Tho- mas Stamford Raffles from Sumatra, and described by him under the title of Simla melalophos, in the thirteenth volume of the c Linnean Transactions.

Recently the same animal, as the specimen in the Museum at Paris proves, has been de- scribed by Isidore Geoffroy, in the Supplement to Belangers Travels, under the title of Semnopithecus Jlavimanus ; its distinguishing character consisting in the yellow colour pre- vailing on the lower portions of the extremities, the same parts in the former species being bright rust.

If admitted as distinct from its more richly coloured congener, it will stand as follows.

Colour bright glossy golden yellow, washed with rufous about the back, and passing into cinereous on the forearms and outside of the thighs.

Hairs of the head long, but those on the body and limbs are rather short, and inclined to be curly, being very different in character from the long soft falling hairs of S Pyrrhus, and S melalophos.