MAMMALS OF BORNEO. 55 



size conspiciously greater, especially so far as the skull is con- 

 cerned (see dimensions below). Upper surface fawn, the bases 

 of the hairs slate coloured ; whole of lower surface pure white. 

 Ears large, naked. Tail long, hairy, and pencilled as usual ; 

 uniformally brown above and below. 



Skull with a flatter profile than in Ch. ^s^Iiroidcs : anterior 

 palatine foramina very short, ending half their own length in 

 front of the molars. Molars broad and rounded. 



Dimensions of the t^'pe (an adult female stuffed) : — 



Head and body loo miliim. ; tail loq ; hind foot 2i'; ; 

 ear from notch 14. 



Skull : upper length 30 ; breadth of brain-case 14 ; length 

 of nasals 10 ; interorbital breadth 5-3 ; interparietal, length 

 5"2, breadth 10-4 ; anterior zygoma-root y\ ; palate, length 

 15-2 ; breadth outside m- 1 5-8, inside m. 1 ^4 ; diastema 8-5 ; 

 anterior palatine foramina 3-8 ; length of upper molar series 4-4. 



A second specimen from the same place agrees with the 

 type in every respect. 



Hab. Sadong, Sarawak (A. R. Wallace). Kina Balu 

 (A. Everett). 



(; E N u s :\i u s . 



MUS RATTUS. 



Mils rattits^ Linn, Syst. Nat. i., p. 83 (1766). 



Two specimens from Kina Balu mountain from an altitude 

 of 8000-ft. have their fur long and soft, while those in those 

 from 3000-ft it is short and harsh, so that it seems difficult to 

 believe that both forms can be referable to the same species. 



Dimensions — Head and body 5 to 8 inches ; tail 5 to 9 or 

 even more ; hind foot without claws r2 to i'5 ; ear 07 to i. 



Found everywhere both in the low country and on the 

 mountains. D3-ak name ' Chit,' Kayan name ' Lavo,' Malay 

 name ' Tikus.' 



Hab. Baram River (C. Hose). Mount Dulit 2000-ft. (C. 

 Hose). Mount Batu Song 3000-ft. (C. Hose). 



MUS ALTICOLA. 



Miis alticola, Thomas, Ann. Mag. N.H. (6), ii., p. 408 

 (1888). 



Fur mixed with flexible spines both above and below. 

 General colour above a peculiar bluish grey, not speckled or 

 grizzled, darker along the median line. Dorsal hairs and spines 

 creamy white basally, gradually darkening to grey terminally. 

 Underside pale yellowish white, the hairs and spines uniformly 

 of this colour to their bases ; the line of demarcation on the 

 sides not very sharply defined. Hands and feet white, the hairs 

 short and fine, fifth hind toe (without claw) reaching nearly to 

 the end of the first phalanx of the fourth. Tail finely ringed, 



