6G2 Mr. O. Thomas 07i Mammals from. 



28. Microtus clarkei, Hint. 



^. 2603. 13,000'. 



This specimen is indistinguishable from the typical series 

 described from the Kiu-kiang-Salvveen divide. 



29. Rhizomys wardi, Thos. 



? . 2789. JST.W. Flank. 12,000-13,000'. 



Evidently widely distributed tlirough the Yunnan liigh- 

 lands. Mr. C. J. Gregory recently obtained a specimen at 

 Lanpinghsien, 26° 27' N., 99° 28' E. 



30. Ocliotona forresti^ sp. n. 



c^. 2597,2598. N.W. Flank. 13,000'. 



A large species allied to thihetana. 



Size considerably larger than in any described species of 

 the thihetana group. Fur medium, hairs of back about 

 15 mm. in lengtji. General colour above of the same heavily 

 lined brown as in thibeiana and sihimaria. Under surface 

 dark soiled grejish, the hairs slaty at base, whitish or huffy 

 at tip. Nape dark hoary greyish, this colour extending 

 more or less on to the face, but the forehead is brown. Ears 

 like those of thihetana, of similar length, with the same black 

 or blackish proectote, dark grey-brown metentote, and well- 

 deHned white edge. Arms huffy or tawny brown, the 

 shoulders and sides of neck also more or less washed with 

 tawny. Hands huffy whitish ; fore-claws very long, much 

 longer tlian those of any of the species of the thihetana 

 group, and equalling those of the large 0. roylei. Feet dull 

 whitish, the metatarsals huffy ; brushes of soles blackish. 



Skull of the general shape of that of thihetana, but larger, 

 and not so flattened. Nasals proportionally narrower. 

 Palatine foramina only slightly and evenly expanded behind, 

 quite without the conspicuous posterior broadening found in 

 ththetona. Bullse about as in that species. 



Dimensions of the type: — 



Head and body 185 mm. ; hind foot 27 : ear 19. 



Skull : greatest length 39 ; condylo-incisive length 37 ; 

 zygomatic breadth 19'4; nasals 12*6x6; interorbital 

 breadlh 5 ; breadth of brain-ease 15*8 ; palatal foramina 

 9-6 X 3-3 ; length of bulla 9 ; upper tooth-series (alveoli) 7*3. 



2ype. Adult male. B.M. no. 23. 4. 1. 91. Original 

 number 2597. Collected in August 1922. 



