THE LANGURS. I39 



The variety of this species inhabiting Siam has a fleshy-white 

 area round the eyes and mouth. 



Distribution. — Siam ; the Malay Peninsula ; and Sumatra. 



XXIX. THE MOUPm LANGUR. SEMNOPITHECUS 

 ROXELLANyE. 



Semnopithems roxellance, A. Milne-Edwards, C. R., Ixx., p. 341 



(1870) ; Schl., Mus. Pays-Bas, vii., p. 65 (1876). 

 Rhijiopitkecus roxellance, id., Rech., Mammif., p. 233, pis. xxxvi., 

 xxxvii. (1868-1874); Blyth, Mamm. Burm., p. 11 (1875). 

 Semnopithecus {Nasalis) roxellance, Anders., Zool. Res. Exped. 

 Yun-nan, p. 43 (1878). 

 Characters. — Face naked, nose depressed in the middle, the 

 tip elevated and terminating in a singular leaf-like point ; sides 

 of the face and brows clothed with a thick ruff, which extends 

 in a line across the face towards the nose ; face green ; the 

 frontal region, sides of the face, auricular region, sides of the 

 neck and shoulder, chin, chest, inner side of the fore-limbs, and 

 upper aspect of the feet, yellow; top of head greyish-black 

 washed with rufous ; from the nape (with the outer aspect of 

 the fore-limb) to the lower back silvery-grey, darker towards 

 the neck, brightening towards the tail and front of the thighs, 

 where it is washed with bright yellowish-grey ; callosities and 

 outer aspect of the thighs, bright yellow ; under surface of the 

 body grey washed with yellow ; tail grey at the base, tufted at 

 the tip and yellow; thumb very short. Length of body, 26 

 inches ; of tail, 2 1 inches. 



Female. — Similar to the male, but duller. 

 Young. — Also paler, with more yellowish-grey round the ears, 

 but the top of the head not black. {A?tderso?t.) 



