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Show i960.] MAMMALS OF SIAM A N D THE MALAY PENINSULA. 313 Dr. Hanitsch (Rep. Raffles Libr. & Mus. 1898, p. 8) mentions specimens of H. lar being in the Museum at Singapore from Tanjong Kopang and Kota Tinggi in Johore, and from Kuala Lambilong and Lambatuah in Pahang. Distribution. Malay Peninsula, Tenasserim, and perhaps also Pegu and Arakan. 2. HYLOBATES AGILIS F. Cuvier. The Agile Gibbon. Cantor (op. cit. p. 3) gives as its habitat "Malayan Peninsula (Malacca, Purlis, Keddah, Pungah), Sumatra ; " he also says it appears to be less numerous on the Peninsula than II. lar, and that he has not seen the light-coloured variety. Ridley (Mammals Malay Pen. p. 26) writes it " is common in the Malay Peninsula as far south as Johore, but it is not wild in Singapore." 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 3200 feet elevation; every morning they commenced calling at 6 A.M. and continued till about 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 tbe sea-level. At Paknam Kabin in Siam, in March 1897, there was a pet gibbon of the variety pileatus said to have been caught in the neighbourhood. Its colour was buffy white, except the hair on the top of the head, which was black, and on its chest, which was very dark grey. The skin of the face and palms of the hands and feet were black. Distribution. Siam, Malay Peninsula, Sumatra. 3. HYLOBATES LEUCOGENYS Ogilby. The White-cheeked Gibbon. Distribution. Siam (Forbes, ' Handbook Primates,' ii. p. 158). 4. HYLOBATES SYNDACTYLUS (Desm.). The Siamang. In the Museum at Taiping there are specimens from Kinta and from Upper Perak. In September 1898, with the kind assistance of Mr. Ridley, I obtained a live Siamang, which had been caught in the Negri Sembilan, and which was successfully brought home alive to this Society's Gardens. Mr. Wray (J. S. B. E. A. S. 1890, no. 21, p. 138) writes of this species:-"A fact which does not seem to be in conformity with the generally received ideas of the habits of the gibbons, is that on both of my ascents of the summit of Gunong Batu Pureh (in the interior of the Malay Peninsula) I heard the cries of Siamangs at between 6000 and 7000 feet altitude. One would have thought that tbe climate would be too cold and bleak for such delicate animals, but it appears that they can and do voluntarily stand a considerable degree of cold without any inconvenience." Distribution. Malay Peninsula, Sumatra. |