38 SIMIID^. 



Preshjtes cinerea, Gray, Hand-list. Mam. B. M. 1843, p. 193. 



Semnopithecus nigrimanus, Is. Geoff. St.-Hil. ArcK. du Mus. vol. ii. 1843, p. 545 ; Mivart, Proc. 



Zool. Soc. 1864, p. 626 : Blyth, Journ. As. Soc. Beng. vol. xliv, 1875, ex. no. p. 9. 

 Semnopithecus argentaiia, Blyth, Horsfd. Cat. Mam. E. Ind. Co. Mus. 1851, p. 7. 

 Semnopithemis cinereits, Mivart, Proc. Zool. Soc. 1864, p. &1&. 



Tre&hytes crislatus (nee. Raffles), Blyth, Journ. As. Soc. Bengal, vol. xliv. 1875, ex. no. p. 9. 

 fresbytes melanophus, Blyth, Journ. As. Soc. 1875, ex. no. p. 9. 



Prevailing colour, clear ashy grey, on the upper parts more or less tinged with 

 hrown, passing into black on the hands and feet, and to blackish brown on the front 

 of the crest, and to pale-yellowish brown on the cheeks. A whitish line along the inside 

 of the foot. The tail unifornaly dark brown or blackish. A moderately long, 

 erect, compressed crest, and the hairs on the parietal bones forming a whorl, the 

 anterior hairs being directed forwards, projecting beyond the eyebrows. The under 

 parts are less dark than those of the upper surface, and tend to greyish or yellowish 

 grey. The face is dull black, with the region around the eyes and the mouth fleshy 

 white. 



In the young, some months old, the forehead, temporal region, sides of the face 

 and behind the ear, the flanks, the outside of the thighs, and the under parts are 

 pale grey, the remaining parts being pale brownish. 



Inhabits Siam and the Malayan peninsula. 



I have examined all the specimens on which the above synonomy is based. 



Under S. mitratus, I have mentioned that this species has generally only four 

 tubercles on the last molar of the lower jaw, but in a specimen in the Indian Museum 

 there is a distinct rudimentary fifth talon — rudimentary as compared with the ordi- 

 nary dimensions attained by that structure ; and Mivart mentions that he has observed 

 a Semnopithecus with six talons on the last inferior molar. 



Semnopithecus eutledgii, n. s. 



Porm slender ; black, the hairs tipped with lustrous grey on the head and trunk, 

 and with a somewhat yellowish grey on the limbs, except on the hands and feet which 

 are jet black. The under parts are paler and more broadly tipped with grey. The crest 

 is very well defined, erect, median, much compressed and not bent forward in front 

 with the hair external to it on the parietal region very short and broadly tipped with 

 lustrous grey, as is also the crest posteriorly, giving a whitish appearance to the sides 

 and back of head when seen in certain lights. Hairs on the front of the forehead 

 short and not divergent over the face. Whiskers long, backwardly and upwardly 

 divided and broadly tipped with yellowish grey. Beard greyish, face dark-bluish 

 black. The tail black above, tipped with grey, but yellow on the under surface, 

 especially at the root. 



The foregoing description is drawn up from a female cutting her last molar 

 above and below ; the latter tooth has four cusps. The skull in its o'eneral form and 



