Celebes^ Borneo^ and the Philippines. 247 



Besides the type, there are several other specimens from 

 Rurukaii, two from Menado, and one from Mount Masarang. 



This species is apparently most closely allied to M. chryso- 

 comus, Hoffm., also a native of Celebes, but differs from it by 

 its larger size, beaded supraorbital edges, and much heavier 

 molars. 



Mus minahassce, sp. n. 



General appearance that of the Mus Margarettce of Sarawak, 

 but the structure of the feet quite as in normal Mus. Size 

 small. Fur long and soft. Ears of medium length. General 

 colour above rufous, duller on the back, brighter on the sides. 

 Under surface white, bases of the hairs grey ; line of demar- 

 cation on sides well-marked. Metapodials brown, fingers 

 and toes whitish. Thumb with a large nail, other digits 

 with short, sharp, curved claws. Hallux not opposable, with 

 a claw, reaching without its claw to the base of the second 

 toe ; fifth toe reaching to the middle of the second phalanx 

 of the fourth. Soles naked ; pads apparently six in number 

 as usual, not striated, the posterior one elongated. Tail long, 

 slender, very finely scaled (23-25 scales to the centimetre), 

 short-haired (the extreme tip is gone, but there is no sign of 

 the commencement of a terminal pencil), uniformly brown 

 above and below. 



Skull suggesting that of Chiropodomys by its dispropor- 

 tionally large brain-case and small face. Muzzle short and 

 slender. Interorbital region narrow, flat above, its edges 

 square, faintly beaded ; parietals large, convex ; interparietal 

 large ; zygomata very weak and slender, greatest breadth of 

 skull just at their posterior roots ; anterior zygoma-root not 

 projected forwards. Palatal foramina small. Molars short, 

 broad and rounded. 



Dimensions of the type (an adult female in skin) : — 



Head and body 77 millim. ; tall (extreme tip gone) 105 ; 

 hind foot (moistened) 20 ; heel to front of last foot-pad 9*3 ; 

 ear (dried) 12-7. 



Skull : basal length 18*6 ; basilar length from henselion 

 17*2; greatest breadth 12*3; nasals 7'lx2-5; interorbital 

 breadth 3'8 ; brain-case, length 13*2, breadth ll'S; inter- 

 parietal 4'5x8*5; diastema 6'1; anterior palatal foramina 2*9; 

 length of upper molar series 3*2. 



Hah. Ruriikan, Minahassa, N. Celebes. 



Coll. Charles and Ernest Hose, November 1895. 



This very pretty little mouse is readily distinguishable 

 from all others by its Chiropodomys-like appearance and 

 skull, combined with its strictly Mus-Vike hands and feet. 



