A THIRD COLLECTION OF SIAMESE MAMMALS. 



269 



2. Macaca irus. 



^f|lca(■u:^i,■u.1 F. Cnw, ileiii. Mils Hist. Nat. Paris, iv., n. 120 (1818). 

 Miuaca irus Kloss, P. Z. S. 191G, p. 31. 



2 $ ad. Pak Kioiigi Pran.S.W.Siam. 28 June 191 7 [Nos. 2545-6]. 



1 <S subad., 1 2 ad. Pak Nanil Ciiumporn, S. W. Siani. 7 July 

 1917 [Nos. 2563-4]. 



All obtained by ilessrs Williamson and Sniith':! collectors. 

 These Macaques are all dull-coloured animals lacking any bright 

 ochraceous tone in the upper parts, where the yellow element is buff. 

 The I'ran animals are rather greyish, tiie others rather brownish ; 

 and the latter have a blackish area extending from the forehead to 

 crown : the top of the head in the Pran specimens is like the back, and 

 as both phases of colour occur with intermediates in animals taken b)' 

 Mr. Shortridge near Tenasserim Town the differences are evidently onlj' 

 due to individual variation. 



3. Nycticebus ciuereus M-Edw. 



Kloss, antea, p. 76. 



I d ad. Koh Lak, S. W. Siam. Oct 1916. [No. 2464]. 



This Slow Lemur differs from the very pale example from Koh 

 Lak which I previously described in being generally ochraceous-tawny 

 above, rather deeper on the shoulders and paler on the hind-limbs ; 



I Pak Kloni,', Pak Nain = Miniih of River. 



VOL II, DEC. I'JIJ. 



