I 



194 ME. J. LEWIS BONHOTE on [Mar. 6, 



Muang Pron, above Antong. r, s. c? 2 ad. sk. 12th June, 

 1898. 



This fine series of specimens fully bears out Mr. Thomas's remarks 

 (P. Z. S. 1898, p. 245) that, so far as our present knowledge is 

 concerned, the variations met with in this species apparently follow 

 none of the ordinary laws which are usually supposed to govern 

 such cases. 



11. Sciurus rufigenis Blanf. 



Doi Sritepe, Chingmai. a. <J ad. sk. 29th March, 1898. 



12. Sciurus caniceps Gray. 



Nan. a, b. 6 2 ad. sk. 27th July, 1897. 

 Chingmai. e-f. d 6 , 2 2 ad. sk. 10th June, 1898. 



13. Sciurus atrodorsalis Gray. 

 Nan. a-f. 3 rf , 3 $ . March 1898. 



There is hardly any sign of the black back in these specimens, 

 which were all taken in March. 



14. Sciurus macclellandi barbei Blyth. 



Nan. 



a. tf ad. sk. 23rd July, 1897. 



b,c. 6 2 ad. sk. 1st & 10th September, 1897. 



15. FUNAMBULUS BERDMOREI (Blyth). 



Sokotai, Nam Phi. a. <$ ad. sk. 17th Jan., 1898. 

 Nam Phi, near Nan. b. <$ imm. sk. 23rd May, 1898. 

 Maang Prom, above Antong. c, d. <$ 2 ad- sk. 12th June, 



1898. 



16. Mus musculus Linn. 



Nan, Siam. a-c. d 2 2 ad. sk. 13th & 27th Aug. & 8th Sept., 

 1897. 



These specimens are light in colour and almost white under- 

 neath. 



17. Mus rattus L. 



Nan. 



a-d. Ad. sk. July 1897. 



e-l. Imm. sk. Aug., Sept., & Nov., 1897. 



All the specimens in this collection belong to that form of 

 Mus rattus which is fouud throughout Southern India and Ceylon. 

 The general colour is light fawn, and the long black hairs are numerous 

 and distinct. There are practically no spines, and the tail is longer 

 than the head and body. They do not agree with the types of 

 MM. flavescens, rufescens, brunneusculus, or nitidus, but in shape 

 and colour most nearly approach the true Mus rattus, under which 

 name I have therefore placed them. 



