MACACUS. 57 



that there seems no doubt that it is an example of this species. It had been 

 also in captivity, but I could gather no information as to the locality whence it 

 had been obtained. 



Besides these two monkeys I am indebted to Dr. Marfels, Conservator of 

 forests to the King of Burma, for a Macaque agreeing in every respect with M. 

 rhesus, from living examples of which in the Zoological Gardens, London, where 

 it now is, it cannot be distinguished. Dr. Marfels unfortunately could not give me 

 the locality from whence he obtained it and another of the same species, except 

 that they had been brought to him by some of his employes who were engaged 

 in forest work at no great distance from the capital. On my way up the river in 

 1875, I observed a large troop of monkeys exactly resembling M. rhesus feeding 

 among the stunted bushes that occur on the high sandy cliffs that overhang the 

 left bank of the river, below Yenangyoung. 



The only wild monkey allied to M. rhesus that is observed in the northern 

 portion of the country, viz., about Bham6, is the monkey which I have referred 

 to M. assamemis, so that it appears probable that M. rhesus has a distribution to 

 the south of that of the former. It is extremely difficult to offer any satisfactory 

 explanation of the occurrence of these monkeys in the high valleys of Momien 

 and Hotha. I think it highly improbable that they were taken from Burma, 

 as in 1868, when I procured these specimens, the country had for years been con- 

 vulsed by revolution, and any communication with Burma, except for the necessities 

 of life, had been for years denied to the unfortunate inhabitants of that high 

 region. 



Both of these first-mentioned monkeys I had alive in my possession in Cal- 

 cutta for fully two years, and during that period I more than once compared them 

 with living examples of the Bengal monkey of their own sex (female) and of 

 various ages ; the only differences I could detect between them were that they 

 seemed more slightly built than M. rhesus, that their hair was rather shorter, 

 softer, and more adpressed and slightly more brilliant in colouring ; also, that the 

 Momien specimen had a duskier face, and that the area external to and below its 

 callosities was densely clad, whereas the other animal had it semi-nude, as in M. 

 rhesus, associated with a somewhat shorter tail. While I regarded the Hotha monkey 

 as a local race of this species, I was still so dubious about the other as to watch 

 carefully during the two years of its captivity in the expectation that time might 

 reveal some determining feature, but none developed itself. 



One description, in which I shall compare and contrast the external cha- 

 racters, may suffice for both these Yunnanese monkeys, and I shall refer to the 

 specimen ,from Hotha as a and to the duskier-faced form as /3. The basal 

 portion of the hair is greyish brown, so to speak, succeeded by a rich yellowish 

 area, terminating in a dark brown or blackish tip. This richly rufous, annu- 

 lated appearance is confined to the upper surface of the animal on its anterior 

 half, extending on to the fore-limbs of ^, but only down the brachium of «, the 



H 



