45i On Sciurus notatus ariff nlJied Speciesi. 



1 1 ah. ]\Iountains of Borneo. 



Ti/pe B.M. 94. G. 2. 24, ?. Mount Dullt, 4000 feet. 

 Collected January 1S92, and presented to tlie Museum by 

 Messrs. Charles and Ernest Hose. 



Sciurus nigrovittatus Khssii, Miller. 

 Sciwus Klossii, Miller, Proc. Wash. Acad. Sci. p. 225 (1900). 



This is apparently an easily recognizable local race rather 

 intermediate between the two preceding. In size it is 

 practically the same as S. n. orestes, while it differs from it 

 in the absence of the light patch behind the ear and in the 

 dull ochraccous of the cheeks, chin, muzzle^ and sides of the 

 neck, approaching very closely in these last two characters 

 the typical race. 



The skull apparently differs in no way from that of 

 S. n. orestes. 



Dimensions: — Head and body 171 millini. ; tail- vertebrae 

 152; hind foot 41. 



Bkull : greatest length 42; pajatal length 17*4; zygo- 

 matic breadth 26*6 ; interorbital breadth 16; length of nasals 

 12 ; breadth of nasals, ant. G, post. 3. 



Ilab. Saddle Island, Tambelan Group. 



Type J, no. 101678 United States National Museum. 

 Collected August 15th, 1899. 



Note. 



Since the above paper has been in the press Mr. Miller * 

 has published a list of the " Mammals of the Natuna Islands," 

 in which he describes five new forms of this group. They 

 are as follows : — 



(1) Sciurus lutescens. — Sirhassen Island. "Allied to the 



S. twiatus from Borneo {S. vitt. duh'tensis, J. L. B.), 

 but considerably smaller. Colours very pale, under- 

 parts buff or cream-buff." 



(2) Sciurus seraice. — Pulo Serai, S. Natunas. " Most 



nearly allied to S. lutescens, but the upper parts 

 slightly less pale and the underparts and pale side- 

 stripe buff-yellow, the former witiiout admixture of 

 grey." 



(3) Sciurus rutiliventns. — Pulo Midei, S. Natunas. " Size 



slightly greater than S. lutescens and S. seraice, but 

 not equal to that of the Bornean or Bunguran 

 representatives of S. notatus \_S. vittatus, J. L. B.]. 



* Proc. Wash. Acad. Sci. vol. iii. pp. 124-129, March 1901. 



