THE LANGURS. T33 



XXIII. rutledge's langur. semnopithecus rutledgii. 



S. rutledgii, Anderson, Zool. Res. Exped. Yun-nan, p. 38 

 (1878). 



Characters. — Head with a very well-defined erect median 

 compressed crest ; frontal hairs not projecting over the face. 

 General colour black, the hairs tipped with lustrous grey on 

 the head, crest, trunk, and limbs. Hands and feet black. 

 Under surface paler and the hairs more tipped with grey ; tail 

 black above, yellow below, tipped with grey; whiskers long, back- 

 wardly and upwardly divided, and broadly tipped with yellowish- 

 grey ; beard greyish; face bluish-black. Length, 17 inches ; 

 tail, 24^ inches. {Anderson.) 



Distriljution and Habits. — Unknown. 

 XXIV. the white-fronted langur. semnopithecus 



FRONTATUS. 



Semnopithecus ff'o?tfatiis, Miill., Tijds., Nat. Ges., v., p. 136, pis. 

 i. and 11.(1838); Martin, Mammif. An., p. 475 (1841); 

 Gray, Cat. Monkeys Brit. Mus., p. 16 (1870); Schl., Mus. 

 Pays-Bas, vii., p. 34 (1876); Anderson, Zool. Res. Exped. 

 Yun-nan, p. 39 (1878 ; with full synonymy) ; Hose, Mamm. 

 Borneo, p. 12 (1893). 



Characters. — General colour dark yellowish-brown, with a 

 wash of red on the flanks in some specimens ; the tail tufted. 

 This species is at once recognised by the bald triangular 

 wrinkled area between the eyebrows, of a milky-white colour, 

 the rest of the face being deep black, except the flesh-coloured 

 lips. It is also remarkable for the erect median crest over- 

 arching the forehead ; and by the long dependent black hairs 

 on the cheeks from near the nose, increasing in length on 



