Miller Mammal* from Lankawi and Butang Islands 191 



dull buff-yellow heavily sprinkled with dark brown. Ventral surface 

 dull, pale, buff, strongly suffused with drab-gray, particularly along 

 median line. - Chin and throat usually dull buffy white scarcely tinged 

 with gray. 



SkuU. The skull is similar to that of Mu tambelanieus except that 

 the audital bullae are very noticeably larger and less depressed on the 

 outer side. Teeth as in Mus tambelanicux, that is, like those of Mux 

 'alexandrinua', only larger. 



Mctixiit't'im'utx. External measurements of type: total length, 406; 

 head and body, 203; tail vertebrae, 203; hind foot, 41; hind foot without 

 claws, 38. Average of seven specimens from the type locality: total 

 length, 386 (373-406); head and body, 196 (184-203); tail vertebra, 190 

 (184-203); hind foot, 40 (38-41.5): hind foot without claws, 38 (35-39). 

 An adult male from Pulo Rawi measures: total length, 409; head and 

 body, 203; tail vertebrae, 196; hind foot, 39; hind foot without claws, 36. 



Specimen* examined. Ten (three in alcohol) from Pulo Adang, and 

 three from Pulo Rawi, Butang Islands. 



Remark*. The close resemblance of this species to Mu8 tambelanicus, 

 and its unlikeness to the small Mus 'alexandrinutf of the adjacent main 

 land suggest that the two large animals are less closely related to the 

 latter than 1 at first supposed Mutt tambelanicux to be. While of the 

 same general form as the roof rat they are heavier animals with coarser 

 more shaggy fur. 



Mus cremoriventer subsp. '! 



Two specimens (one in alcohol) from Pulo Lankawi and a third from 

 Pulo Adang differ from true Mus cremoriventer in a strong yellowish 

 suffusion of the entire pelage. As they were taken at practically the 

 same season as the original specimens of M. cremoriventer there is little 

 probability that the differences are due to individual variation. With 

 out further material, and particularly in the absence of series of the 

 yellowish Mus flaviventer from the Anambas, it seems unwise to attempt 

 to define the present race. 



Ratufa melanopepla Miller. 

 One specimen, Pulo Lankawi, December 9, 1899. 



Sciurus concolor Blyth. 



Two specimens from Pulo Lankawi and three from Pulo Adang. They 

 agree in all essential characters with skins from Trong, Lower Siam, but 

 whether the same as the true concolor of Malacca it is at present impos 

 sible to determine. 



Tragulus umbrinus sp. nov. 



Type. Adult male (skin and skull) No. 104,414, United States National 

 Museum. Collected on Pulo Lankawi, December 7, 1899. Original 

 number, I'M. 



