IV. THE HIMALAYAN LANGUR. SEMNOPITHECUS SCHISTACEUS.
Semnopithecus entellus (nec Dufr.), Hodgs., P. Z. S., 1834, p. 95; Ogilby, Madr. Journ., xii., p. 144 (1840).
Semnopithecus schistaceus, Hodgs., J. A. S. Beng., ix., p. 1212 (1840); Schl., Mus. Pays-Bas, vii. p. 6 (1876); Anderson, Zool. Exped. Yun-nan, p. 16 (1878; with full synonymy); Blanford, Faun. Brit. India, Mamm., p. 30 (1891).
Semnopithecus nepalensis, Hodg., J. A. S. Beng., ix., 1840, p. 1212.
Presbytis entellus (nec Dufr.), Gray, Cat. Hodgs. Mamm. Nepal, p. 1 (1846); id., Cat. Monkeys Brit. Mus., pp. 14 and 15 (1870).
Presbytis schistaceus, Blyth, Cat. Mamm. As. Soc. Mus., p. 11 (1863); Jerdon, Mamm. India, p. 6 (1867); Blanford, J. A. S. Beng., xli., 1872, p. 32.
Characters.—Fur long; hair radiating on the crown; hair of cheeks long, hiding the small ears; tail slightly tufted; top and sides of head pale yellow, or whitish; face and ears, palms and soles black; back, sides, outside of limbs, tail, hands, and feet, dark slaty, or greyish-brown, sometimes washed with purple.
Aged specimens are grey or white on the head; young ones often have the feet darker than the adult.
Facial portion of the skull longer and the superciliary ridges less projected forward than in S. entellus. The nasal bones project beyond a line from the supra-orbital ridge to the front border of the pre-maxillaries; in S. entellus they do not project beyond it.
Distribution.—The Himalayas, from Kashmir to Bhutan from 5,000 to 12,000 feet above the sea, this species taking the place in those high altitudes of the lowland S. entellus.