872 MR. J. LEWIS BONHOTE OS THE [Dec. 4, 



Measurements [from skin]. Length, tip of muzzle to root of 

 tail, 22 in. ; tail 1| in. ; hind foot 5^ in. 



Skull. Greatest length 124 mm. ; zygomatic breadth 81 ; 

 breadth of brain-case 64 : length, occipital to back of nasals, 89 ; 

 back of nasals to tip of pramiaxillae 47. 



2. Macacus cynomolgus (Schreb.). 



Macacus cynomolgus, Schreb. Saugeth. i. p. 91, pi. xiii. (fig. 

 Buffon), nee Linn. ; S. S. Flower, P. Z. S. 1900, p. 316. 



a. J ad. sk. Koh Nam Kam, Tale-sap, Nu Pau, 12th April, 

 1899. 



b. S ad. sk. Jering, 19th June, 1899. 



3. Semnopithecus obscurus Eeid. 



Semnopithecus obscurus, Beid, P. Z. S. 1837, p. 14 ; Flower, 

 op. cit. p. 317. 



a. 2 ad. sk. Koh Nam Kam, Tale-sap, 12th April, 1899. 



4. Sejinopithecus albocinereus Cantor. 



Semnopithecus albocinereus, Cantor, J. A. S. B. xv. p. 174 (1846) 

 (nee Desin.). 



Semnopitheeus mitratus (Eschs.), Flower, op. cit. p. 319. 



a. J ad. sk. Aring, Kelantan, 23rd Aug., 1899. 



This Monkey, which is of a clear ashy grey on the back, white 

 below, with dark hands, feet, and tail, agrees with the example 

 from Klang referred to by Mr. Thomas (P. Z. S. 1896, p. 72) as 

 being identical with Cantor's S. albocinereus. which in Dr. An- 

 derson's opinion, is synonymous with S. siamensis of Midler and 

 Schlegel. Under the name siamensis Dr. Anderson gives a de- 

 scription of the present species ; but on reading Midler's original 

 description I find siamensis to be a dark-coloured Monkey, and there 

 are several specimens in the British Museum of a dark brown Monkey, 

 rather smaller than the specimen under consideration, which agree 

 fairly with Midler's description and are labelled siamensis. There 

 is therefore no alternative but to allow Cantor's name to stand for 

 the present. 



Cantor's type was founded on a young specimen, but he remarks 

 that when adult it is hardly to be distinguished from S. obscurus ; 

 this remark, however, hardly seems to hold good, the present 

 specimen being fully adult and yet showing no such resemblance. 



5. Semnopixhecus sp. inc. 



a. 6 juv. sk. Biserat in Jalor, 26th May, 1899. 



This specimen is very young and shows no distinctive features 

 by which, with our present knowledge of the group, it could be 

 identified. It shows no sign of a crest and the hair of the head 

 radiates straight back from the facial limit, while the face and 

 cheeks are surrounded by long black hairs. In colour it is of a 

 light golden buff all over, with a teudeucy to a black tip on the tail. 



