68 SIMIID^. 



Irawady, 



Q. 

 Inches. 



Greatest breadth of scapula at middle 1'50 



Anterior border of ilium to posterior margin of tuberosity . . . 5'30 



Oblique diameter of pelvis 2"40 



Transverse diameter of pelvis 1'90 



Antero-posterior diameter of pelvis 2*65 



Distance between bones opposite acetabula posteriorly .... 1"25 



„ „ inferior borders of tuberosities ..... 0*70 



„ „ tuberosities superiorly 1'42 



In the neighbourhood of Bhamo a young male was brought to me which unfor- 

 tunately had had nearly the whole of its tail chopped off by the Kakhyens. I took it 

 alive to London, and presented it to the Zoological Gardens, Regent's Park. When 

 I procured it, it differed from the young of M. rhesus in the more uniformly brown 

 colour of its pelage, and after an interval of three months, when it had reached 

 England, these characters had become more pronounced. It was then uniformly 

 reddish brown, the rufous paling on the outside of the thighs and on the fore-arms, 

 but becoming dusky brown on the feet. The face and ears were dusky, contrasting 

 with the paler face and ears of the generality of the males of M. rhesus from 

 Bengal. The hair on the vertex tended to radiate, that on the forehead being 

 directed forwards, and the hair around the area of radiation being darker than 

 that on the sides of the head. The under parts were rather thickly clad, the 

 thoracic and ventral portions were more or less washed with pale golden-yellow. 

 The skin around the callosities was thickly clad. Now, six months afterwards, the 

 characters of its coloration separate it much more distinctly from M. rhesus. The 

 coat generally has become much darker, and on the head and along the dorsal 

 surface it is more or less washed with dark brown or blackish, and the feet are 

 dark brown. The under surface, too, has the golden-yellow more pronounced, and 

 long, pale, yellow-brown hairs are beginning to be developed behind the ears. The 

 shoulders are sensibly washed with yellowish, the fur seems devoid of annulations, 

 and the hind quarters have none of the characteristic red colour which generally 

 distinguishes the common monkey of India. In these latter characters it resembles 

 the type of M. assamensis, and in them exactly corresponds to the monkey which 

 was described by Sclater as M. rheso-similis} As no young M. rhesus has ever 

 shown such an assemblage of characters in confinement, and as they closely 

 correspond to the general and distinctive features of the type of M. assamensis 

 which is a ferine example of a monkey, these facts would seem to point to the 

 existence of a marked race of rhesus-like Macaque, ranging through the Himalaya, 

 Assam, and Upper Burma. 



This is further supported by the circumstance that Hodgson has referred to 

 M. pelops, a monkey, apparently not adult, from which the M. rheso-similis, Sclater, 

 and my young monkey from Bham6, are in no way separable— a statement which 

 is made on the strength of a careful comparison of these materials. 



1 The figure in the Proc. Zool. Soc. 1872, pi. 25, is not coloured sufficiently rufous ; the latter should be more of the 

 shade depicted in M. rufescens, pi. 24 of the same volume. 



