206 Mr. 0. Thomas on 



General colour above of the same mixture of buffy and 

 grej, lined with blackish, as in whiteheadi. Under surface 

 (instead of being more or less bufFy ochraceous) clear pale 

 grey, near " lavender-grey," fairly well defined laterally ; 

 some specimens, however, with a faint bufFy wash along the 

 centre of the chest and abdomen. 



Skull, compared with that of true whiteheadi, larger 

 throughout, and the brain-case broader. Frontal region 

 concave, the supraorbital and parietal ridges strongly marked. 

 Palatal foramina very short. 

 Dimensions of the type : — 



Head and body 130 mm.; tail 120; hind foot 29-7. 

 Skull: greatest length 35'5 ; basilar length 28-2; zygo- 

 matic breadth 15'5; nasals 11'7; interorbital breadth 5'7; 

 breadth across parietal ridges 14'3 ; palatilar length 14; 

 diastema 9 ; palatal foramina 4'5 x 2"4 ; upper molar series 5"8. 

 Hah. Balangean, Northern Central Sarawak. 

 Type. Old female. B.M. no. 11. 1. 19. 2. Original num- 

 ber 27. Collected 3rd July, 1910. Presented by the Sara- 

 wak Museum. Five specimens examined. 



This would seem to be a larger pale-bellied form of the 

 Kiiia-Balu E. whitelieadi, a species which, curiously e'nough, 

 has not as yet turned up in the intermediate region of Baram, 

 so well worked by Messrs. Hose and Everett. 



I owe the opportunity of describing this rat to the kindness 

 of Mr. J. C. Moulton, of the Sarawak Museum, who has sent 

 to the British Museum a small collection of Muridge from 

 Balangean for determination. 



Chiropodomys Jegatus^ sp. n. 



Like Ch. mojoi\ but larger. 



External characters much as in major, but size larger. Fur 

 rather longer and softer ; hairs of back about 7"5 mm. in 

 length. Colour above of the same greyish fawn ; under 

 surface pure sharply defined white. Hands and feet dull 

 whitish, with but little darkening on the metatarsals. Tail 

 longer than in major, rather less heavily tufted. 



Skull longer than that of Ch. major, rather less broad in 

 proportion. Supraorbital ledges well developed. Nasals 

 not projected anteriorly in front of gnathion. Palatal fora- 

 mina decidedly longer than in major. 



Dimensions of the type (measured in skin) : — 



Head and body 133 mm. ; tail 152; hind foot (wet) 24*5; 

 ear (wet) 16. 



Skull : tip of nasals to front corner of interparietal 28 ; 

 lienselion to basilar suture 22; zygomatic breadth 17*2; 



