Races o/Diemomys pernyl. 393 



already explained, it is the saturate form of N.W. Yunnan 

 and the extreme western edge of Sze-chwan which should 

 bear that name. I myself also originally identitied Major 

 Bailey's specimen as D. 'pernyi^ and may therefore, perhaps, 

 have misled Mr. Allen. 



D. p. cjriselda is readily distinguishable from all other 

 forms by its greyish general colour and the long grey hairs 

 along the underside of the tail. 



4. Dremomys pernyi modestus, subsp. u. 



Fur rather harsher than in the westtrn and more highland 

 subspecies. General colour more drabby brown, near 

 '' Saccardo's umber," the type even approaching " bufFy 

 brown." Ear-patches comparatively inconspicuous, scarcely 

 contrasting at all with the colour of the head. Under surface 

 distinctly tinged with bufFy, especially posteriorly. Middle 

 area of underside of tail dull buffy. 



Dimensions of typical skull : — 



Greatest length 52 mm.; facial length 2(v5 ; length of 

 brain-case 27; upper tooth-series exclusive of^'^ 8'-4. 



Hah. Sui-yangj Kwei-chow. 



Type. Old male. B.M. no. 8. 8. 11. 41. Collected 

 April 1898. Presented by F. W. Styan, Esq. Three 

 specimens. 



All the eastern forms of D. pirnyi (east of about 106° E.) 

 have a more brownish tone than the western ones. D. p. mO' 

 destus is most allied to D. p. senex of Ichang, but is u paler 

 brown, with less conspicuous ear-patches. 



5. Dremomys pernyi senex, G. All. 

 Dremomys senex, G. All. Mem. Mus. Harvard, xl. no. 4, p. 229 (1912). 



General colour brownish olivaceous, not so brown as in 

 the next subspecies or D. p. modestus, not so olivaceous as 

 in D. p.jiavior. Ear-patches very conspicuous, usually rich 

 ochraceous, but white in the type, a variation which occurs 

 ill other members of the genus. Under surface more or less 

 suffused with buffy, which is specially well marked on the 

 area in front of the thighs. 



Skull-dimensions of type (from Allen) : — 



Greatest length 53 mm. ; upper tooth-row, exclusive of 



Hah. Ichang. Eight specimens in the British Museum, 

 presented by Mr. Styan. 



