176 MUS FABERI. 



Sciurus prevostii Desmarest. 



Three specimens from West-Sumatra. Two of them 

 represent the afrirapillus-cons^ecies , which hitherto only 

 was known from Borneo. The third specimen agrees en- 

 tirely with Gray's Sriurus pluto from Borneo ; the white 

 side-stripe is present although in the form of a nearly 

 imperceptible trace of lighter shaded black hairs, only visi- 

 ble in a favorable light and by turning the specimen 

 into a certaia position. 



Sciurus plantani Ljung. 



A single fullgrown specimen from West-Sumatra; the 

 underparts are reddish tinged. 



Pteromys nitidus Desmarest. 

 An adult female from West-Sumatra. 



Mus helwaldii Jentink. 

 An adult specimen from North- Celebes. 



Mus faheri n. sp. 



Upperparts of head and body and outside of legs slaty- 

 colored , darker on the back; muzzle, a circle round the 

 eyes and front of ears light brown, underparts of head 

 and body and inside of legs pure white. Tail whitish. 



Cutting-teeth yellow-orange, not grooved. 



All the hairs are very soft to the touch , on the back 



a few longer bristles are to be found. 



m.m. 



Length of head and body 206 



» » tail (incomplete) . . • 175 



» » hind foot with claws 35 



Distance between incisor and first upper molar. . . 11 



Notes trom the Leyden M^useum , "Vol. V. 



