392 Messrs. H. C. Robinson and C. B. Kloss on 



TicUell, but as no type is in existence it cannot be recognized, 

 especially as the very brief description, '' Dorsal stripe 

 bifurcating on the forehead and encircling the eyes. Colour 

 pale rufescent/' discloses no differential characters. 



On page 30 (Vol. I.) the geographical range of N. mahii- 

 anus is said to be '' Chittagong, through Arakau as far south 

 as Tringganu, Lower Siam.'* 



It is obvious that two local races cannot occupy the same 

 area, and it may also be remarked that Trengganu, a pro- 

 tected state in the central section of the jN'Iahiy Peninsula, 

 is not " Lower Siam/^ and that the range of N. malahmus - 

 extends over the whole of the Malay Peninsula as well as 

 the islands of Singapore and Penang, and is not restricted 

 to the northern half, as Dr. Elliot would appear to infer. 

 Specimens from Johore, collected by Dr. W. L. Abbott, are 

 recorded by Lyon (Proc. U.S. Nat. Mus. xxxi. p. 557, 

 1900). 



Pithecus rufescens. (Vol. II. p. 193.) 



It is only the females and immature of this species that 

 are bright red ; the adult male is seal-brown with very long 

 hair on the shoulders. 



Tiie range is from Muleyit in Tenasserim to Trang and 

 Patching in the northern parts of the Malay Peninsula, the 

 former locality having been duly recorded by lionhotc 

 (P.Z. S. 1900, p. 871). 



Pithecus adustus. (Vol. II. p. 206.) 



This form can only doubtfully be maintained, as animals, 

 even from the south of the Malay Peninsula, are fre([uenlly 

 annulated. Dr. Elliot gives it as representing the Suuiatran 

 animal in Tena^^seiim, but on the preceding pages gives the 

 range of that form, P. nemesir'mus, as Southern iiurma, 

 JMalay Peninsula, &c. If sullieieut variation from the 

 tvpical Sumatran form should be proved, all mainland 

 specinicnis will probably have to bear the name aduslus, but 

 (;xisting material, whicli is considerable, tends to show the 

 eontiai'V. 



In 1908 the Federated Malay States Museums undertook 

 a collecting expedition of some months' dni-ation to the 

 Jlhio-Lingga Archipelago and the adjacent parts of Johore 

 and Singa[)ore Island. 



The collection of mammals obtained was very large, 

 and a fully representative set was jaesented to the Uritisli 



