244 Mr. 0. Thomas on Tree-Shrews. 



olive-grey, tlie posterior back, as in true helangeri, witli a 

 fulvous suffusion. Shoulder-streaks unusually white, sharply 

 defined, and conspicuous. Under surface white, with scarcely 

 a tinge of buffy, the hairs white to their roots ; inner a-;pect 

 of limbs white, not grey-mixed, tlie inner side of the hind leg.-s 

 particularly strongly contrasted and markedly different from 

 what is found in the other subspecies. 



Skull with the bullae rather larger than in other subspecies. 



Dimensions of type given on p. Go of Dr. Lyon's 

 Monograph. 



Hah. Zibugaung, Lower Chindvvin. 



Type. Male. B.M. no. 6. 7. 5. 1. Collected 15th January, 

 1906, and presented by Capt. A. JMears. 



This form is readily distinguishable by its conspicuous 

 white shoulder-stripe, chest, and inner side of hind limbs. 



Passing eastwards again from the region inhabited by 

 helnngeri and chinensis, we find tlie Tree-Slirews becoming- 

 darker and more rufous, two series — from Mongtse, Yunnan, 

 and Nan, Siam, respectively — being both distinguisiied trom 

 the more western forms in this way. But they also differ 

 from each other in various ways, and I therefore base on 

 them the two following new subspecies : — 



Tupaia helangeri yunalis, subsp. n. 



Colour much darker than in heJangeri and chinensis, the 

 back more rufous, tlie rump more blackish grey, theiefore in 

 direct contrast to helangeri, in which the rump is more rufous 

 than the back. General tone near " mummy-brown,^' but 

 there is a variation towards the olive-grey of chinensis. 

 Rump distinctly darker than back. Under surface grey, 

 washed with whitish, though in some cases the whitish goes 

 to the root of the hairs ; but there is never the distinctly 

 contrasted white of subsp. sicca'.a. Slioulder-slripes incon- 

 spicuous, dull whitish. 



Aleanurements on p. GG of Dr. Lyon^s paper. 



J lab. S.E. Yunnan. Type from J\loMg-tsze. 



Tape. Adult female. B.M. no. 12. 7. 25. 45. Collected 

 lOih July, 1910, by IL Orii. Seven specimens. 



Tupaia hehaujeri kwtum, subsp. n. 



General colour rufous browji (''Brussels brown," Ilidg- 

 way), the rump blackish grey — therefore, again, in contrast 

 to true hehuujeri, in which the fure-back is grey and the hind- 

 baok rufous. As compared with //una'ii the colour is 



