452 Mr. O. Thomas on the 



shorter and more spiny, and colour different. Back coarsely 

 grizzled brown and fulvous rufous ; belly brilliant fulvous 

 yellow (" ochraceous "). 



Mount Kina Balu, below 3000 feet {Everett). 



7. Mus Whiteheadi, sp. n. 



Size small ; hind foot about 27 millim. Tail about length 

 of head and body, nearly naked, bicolor. Fur spiny. Colour 

 rufous above, but the tips of the spines wholly brown or 

 black, ochraceous, with slaty bases, below not sharply defined. 

 Hands and feet white ; soles slate-coloured. Mammas 

 2 — 2 = 8. Bullee small; palatal foramina short. Teeth of 

 normal size. 



Kina Balu ( Whitehead, Everett) ; Poeh Mountain {Everett) ; 

 Penrisen Hills {Everett) ; Banguey Island (Everett). 



11 Ahun-Ahun " of Kian Dusuns {Everett). 



8. Mus hceodon, sp. n. 



Hind foot 25 or 26 millim. Proportions and characters of 

 feet and tail much as in the last species. Fur very spiny. 

 Colour rufous, faintly speckled with yellow ; the spines, at 

 least on flanks, with yellow terminal or subterminai rings ; 

 belly-hairs wholly whitish buff, not sharply defined. Mammce 

 2 — 2 = 8. Bullse and palatal foramina as in Whiteheadi. 

 Teeth very small. 



Mount Kina Balu {Everett). 



9. Mus Jerdoni, Bly. 



Size very variable, some specimens almost as large as 

 M. rajah and others as small as M. ephippium ; hind foot 

 ranging from 25 to '60 millim. Tail very long, considerably 

 longer than the head and body; more hairy than in other 

 species, and finely tufted at the end; uniformly brown in 

 some, partly or wholly bicolor in others. Fur spiny. Colour 

 rich rufous, strongly lined with black along the centre of the 

 back. Belly pure sharply defined white or pale yellow. 

 Upper surfaces of hands and feet with a brown patch on the 

 metapodials, the remainder pure white. Mammas 2 — 2 = 8. 



Sikim and other continental localities. Mount Kina Balu 

 ( Whitehead, Everett) ; Mount Dulit (Hose) ; Niah Coast 

 {Hose) ; Penrisen Hills {Everett). 



"Rapit " of Kian Dusuns {Everett). 



[The difference in size between the various specimens re- 



