— some new East-Indian Muride. 247 
zygomatic breadtli 22; nasals 17 x 5:5; interorbital breadth 6; 
zygomatic plate 4°2 ; palatilar length 21; palatal foramina 
9°2 ; upper molar series 72. 
Hab. N. Celebes. Type from Mt. Masarang, Minahassa, 
2000’. 
Type. Adult male. B.M.no. 97. 1. 2.22. Original num- 
ber 15. Collected 1st October, 1895, by Dr. Charles Hose. 
Four specimens examined. 
A very distinct species, readily recognizable by the un- 
usually long soft fur of its posterior back and by its small 
teeth. 
Rattus dammermani, sp. n. 
A large harsh-furred rat of the ratius-neglectus group. 
Mammee 3—3=12. 
Size about as large as in RR. miillert. Fur exceedingly 
poor, harsh, and thin, with hardly any underfur, the chief 
part of the pelage formed by the numerous narrow spinous 
hairs. General colour above rufous-brown, the spiny hairs 
whitish at base, with dark brown tips. Under surface dull 
whitish, fairly sharply defined, the hairs light to their bases ; 
middle line of chest faintly darker. Limbs more reddish 
brown, hands and feet whitish. Tail Jong, short-haired, 
uniformly brown, Mamme 3—3=12. 
Skull strongly built, elongate, with long narrow nasals, 
strongly developed supraorbital ridges, which sweep evenly 
round to the outer corners of the interparietal without forming 
any postorbital process or angle. Zygomatic plate strongly 
convex. Palatal foramina long, reaching past the level of 
the front root of m'. Bulle fairly large. Incisors ortho- 
dont. Molars proportionally small. 
Dimensions of the type (measured on a stuffed speci- 
men) :— 
Head and body 206 mm. ; tail 252 ; hind foot 43 ; ear (no 
doubt shrunk) 17. 
Skull: greatest length 50; condylo-incisive length 48 ; 
zygomatic breadth 25; nasals 19°7; interorbital breadth 7°3 ; 
breadth across parietal ridges 15°8 ; zygomatic plate 6; pala- 
tilar length 24 ; palatal foramina 9°15; postforaminal palate 
10°1 ; upper molar series 8. 
Hab. (of type). Wadjo, N. Celebes, at the N.W. corner of 
the Gulf of Tomini. 
Type. Adult female. B.M. no. 21.2.9.7. Original num- 
ber 105. Collected 12th April, 1915, by the Dutch Con- 
troleur. Presented by the Buitenzorg Museum. One 
specimen. 
