272 Dr. D. G. Elliot on apparently new 



parts o£ body and flanks drab-grey, palest on dorsal line and 

 darkest on flanks, -where in certain lights the hair becomes a 

 drab Tvitliout the grey tint, varying, however, as the light 

 falls upon it ; forearms, in the type, a very old male, on 

 outer side dark greyish brown, on inner edge the arms ai'e 

 covered with russet hairs tl.at extend downward over the 

 hands, faded from the original black ; feet brownish black, 

 but overlaid with russet hairs ; space above eyes, eye lids, 

 and upper lip flesh-colour, probably orange-yellow in life ; 

 face black, covered with short black hairs ; whiskers long, 

 extending beyond the ears, black, grading into drab-grey 

 towards the tips; chin whitish; inner side of arms olive- 

 grey tinged with bufl"; under parts of body greyish white 

 tinged with buff ; tail above brownish olive-grey, beneath 

 olive-grev. 



Measurements. Total length 1160 mm. ; tail 620; foot 150 

 (skin). Skull : occipital region gone; intertemporal width 

 45*1; zygomatic width 81*4 ;' breadth of brain-case 60; 

 length of nasals ll'S ; palatal length 327 ; length of upper 

 molar series 27*1 ; length of upper canines 19'4 ; length of 

 mandible 75; length of lo^er molar series 33'7. 



Type in British Museum, no. 85. 8. I. 11. 



There are two specimens in the British Mnseum, both 

 males and from the same locality, but the type alone has 

 russet hairs on the arms, hands, and feet. The other male 

 is a beautiful drab-grey above and on the limbs, with 

 hands and feet brownish black, this colour extending slightly 

 on outer side of forearms above the wrist ; the tail is silver- 

 grey with a slight olive tinge. The russet hairs seen on the 

 type are probably the result of age. It is a very handsome 

 species in its attractive Quaker dress. 



Presbytis crepuscida ivroughtoni, subsp. n. 



Type locality. Pachebou, Siam. 



Gen. char, i'orehead and temples not black ; hands and 

 feet not jet-black ; upper parts generally paler than P. crepus- 

 cula, more silvery. 



Colour. Space above eyes and lips flesh-colour ; rest of 

 face blackish brown ; a line of stifl' black erect hairs above 

 eves ; top and sides of head wood-brown ; whiskers reaching 

 beyond ears wood-brown ; hind-neck, upper parts of body, 

 and arms to elbow silvery drab-grey, varying in depth 

 according as the light falls upon it, but always paler and of 

 a ditt'erent hue from F. crepuscula ; forearms brownish grey, 

 grading at Mrist into blackish brown on hands speckled with 



