Bornean Species of the Genus Mus. 451 



coarse, without spines or longer bristles. Colour coarsely 

 lined black and yellowish. Belly whitish buff, almost or 

 quite without slaty bases to hairs ; not sharply defined. 

 Metapodials brown, digits naked. Mammas 2 — 2 = 8. 



Batang Singalan *, Sumatra (Mutter, Ley den Mus.) ; Sa- 

 dong, Sarawak ( Wallace) ; Kina Balu, Paitan, and Gomanton 

 Cave, N. Borneo (Everett) ; Mount Dulit, 2000 feet (Hose) ; 

 Claudetown (Hose) ; Labuan (Everett). 



3. Mus sabanus, Thos. 



Size large ; hind foot about 41 millim. Tail much longer 

 than head and body, rather more hairy than in the previous 

 species, its colour variable, more or less bicolor. Fur thinly 

 spinous. Colour coarsely lined rufous, clearing to bright 

 rufous on sides. Belly pure sharply defined white or pale 

 yellow. Centre of metapodials dark brown, their sides and 

 whole of digits white. Mammas 2 — 2 = 8. 



Mount Kina Balu ( Whitehead, Everett) ; Mount Dulit, 

 5000 feet (Hose) ; Niah Caves, Sarawak (Hose) ; Bunguran 

 Island, Natunas (Everett). 



4. Mus rajah, sp. n. 



Size medium, but feet proportionately very long, so as to 

 be nearly as long as in the last species (circa 39 millim.). 

 Tail about as long as the head and body, thinly haired, bicolor. 

 Fur thickly spinous. Colour varying from isabelline to 

 rufous, in all more rufous on sides. Under surface white, 

 generally sharply defined ; a rufous collar in some specimens. 

 Hands and feet white. Mammas 2 — 2 = 8. 



Mount "Batu Song (Everett) ; Paitan, N. Borneo (Everett) ; 

 Kina Balu (Everett) • Labuan (Loio, Everett) ; Penrisen Hills, 

 W. Sarawak (Everett) ; Bunguran Island, Natunas (Everett) ; 

 Palawan (Whitehead, Everett). 



5. Mus alticola, Thos. 



Size medium ; hind foot about 32 millim. Tail about equal 

 to head and body, practically naked, bicolor. Fur long, 

 spiny. Colour uniformly bluish grey above, pale yellowish 

 white below ; line of demarcation not sharply marked. Feet 

 whitish. 



Mount Kina Balu, 8600 feet (Whitehead). 



6. Mus ochraceiv enter, sp. n. 

 Proportions and other characters as in last, but fur 



* The type locality is always put first. 



