266 Dr. D. G. Eir.ot oti apparently new 



Colour. — Adult male. Face and nose black ; narrow line 

 on edge of npper lip white; black brow-band mixed with 

 white over eyes, turning upwards at corner of eyes and 

 encircling the crown; no black line from eyes to ears; 

 crown foxy-red, rest of head and hind-neck tawny ochraceous, 

 hairs with a subterminal yellow band and black tips ; dorsal 

 region dark ochraceous rufous, becoming a bright bay on 

 flanks and rump; hairs tipped with golden, only occasionally 

 one with a black tip; shoulders covered with long black 

 hairs annulated with cream-colour; sides of face white; 

 whiskers and sides of neck white tinged with yellow ; inner 

 and outer sides of arms white ; upper part of thighs near 

 hips bright bay like rump, rest of thighs and legs on inner 

 and outer sides white; feet yellowish whiti' ; chin, throat* 

 and chest white ; middle of abdomen pale yellow ; tail above 

 bay, beneath yellowish white. 



Measurements. Total length 1070 ; tail imperfect 430 ; 

 foot 140 (flat skin). Skull : total length 135 ; occipito- 

 nasal length 114 ; intertemporal width 47*3; hensel 94*7; 

 zygomatic width 80 ; breadth of brain-case 59'3 ; length of 

 nasals 25'2 ; palatal length 47*7; length of upper canines 

 34"7; length of upper molar series 29*7 ; length of mandible 

 81*8 ; length of lower molar series 36'6. 



Type in British Museum, no. 8.6. 15. 1. 



This species is distinguishable from E. poliopheeus by 

 having white forearms, no black line from eye to ear, and 

 the unspeckled deeper colour of the upper parts of the body 

 and rump. The skull is much longer and narrower, the 

 second molar larger, the last molar and second premolar 

 smaller than the corresponding teeth in E. puliophceus. 



Genus Presbytis. 



Presbytis nudifrons, sp. n. 



Type locality. Bejalong, Sarawak, North-east Borneo. 



Gen. char. Bare spot on forehead similar to that of 

 P. frontata, but divided in the middle by a line of short 

 black hairs running ihrough forehead to end of nose, these 

 hairs growing towards each other from each side and forming 

 a low ridge where they meet ; crest equally long throughout 

 its length from forehead to nape, the hairs turned forwards ; 

 no brown colouring on any part of the pelage. Skull 

 •without the high forehead of P. frontata, the frontal being 

 only slightly raised, and the superior outline posteriorly 

 descending rapidly to the occiput. 



