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Show 1904.] ON A NEW SPECIES OF SPOT-NOSED MONKEY. 433 3. Description of a new Species of Spot-nosed Monkey of the Genus Cercopithecus*. By R. 1. POCOCK, F.Z.S., Superintendent of the Gardens, formerly Assistant in the Zool. Dept., Nat. Hist. Museum. [Received March 15, 1904.] (Text-figure 87.) [The complete account of the new species described in this communication appears here; but as the name and preliminary diagnosis were published in the Abstract, the new species is distinguished here by being underlined.-EDITOR.] CERCOPITHECUS SCLATERI. (Text-fig. 87.) Cercopithecus sclateri Pocock, Abstr. P. Z. S. 1904, No. 5, p. 18, March 22. Naked integument round orbits blackish, probably bluish when living; eyelids and upper lip a dirty greyish yellow, probably flesh-coloured when living. Nose covered with a large sub-triangular patch of hair, extending almost from the interorbital line, where it is acutely angular, to the extremity of the nose, from which, in the specimen described, the hair appears to have been worn away; laterally the patch is produced towards the cheeks into an acutely angular point, the entire area being nearly twice as wide as long ; the hairs composing it are for the most part white, the extreme margin and the upper interorbital angle being tinged with pale red. No black superciliary band, the reddish-white bases of the backwardly inclined hairs of this region forming a pale supraorbital line. On each side from the corner of the orbit backwards across the temple runs a black band which expands towards the ear, reaching with its inferior edge the middle of the base of that organ ; while its upper edge, running above the ear, is continued across the back of the head to meet at an obtuse angle with its fellow of the opposite side ; the area on the top of the head, thus circumscribed, is covered with hairs banded alternately yellow and black, those on the antero-lateral angles of the area being longer than elsewhere. Beneath the temporal band on the cheek there is a band of grizzly-yellow hairs, which extends backwards beneath the ear on to the neck, and, increasing in width and yellowness in front, runs downwards and forwards to a point to meet the external angular extension of the nose-patch. This yellowish cheek-band is bounded below by a band of black hairs, which rises anteriorly upon the external area of the upper lip between the corner of the mouth and the angle of the nose-patch ; narrowing posteriorly it forms a sinuous curve, ascending on the middle of the cheek and descending and becoming * The spot-nosed species of Cercopithecus have been monographed of late years by:-P. L. Sclater, P. Z. S. 1893, pp. 244-247; Matschie, SB. Ges. nat. Freunde Berlin, 1893, pp. 94-101; H. 0. Forbes, Allen's Nat. Libr., Monkeys, vol. ii. pp. 44-54 (1894). |