from the Trengganu Archipelago. 119 



obscured by grizzling. Greatest length of skull about -lo m\x\., 

 but nasals longer than those of S. miniatus. 



Hah. Lantinga Island, between the Pedang and the Per- 

 hentian Islands, East Coast of the Malay Peninsula, 



Type. Adult male. S.M. 2085/10. Collected 6th Sep- 

 tember, 1910. Original number 3500. 



Nine specimens examined.. 



Sciui'us tenuis sordidus, subsp. n. 



A small insular race of S. tenuis characterized by dull 

 pelage similar to that of 5. /. surdus, and by the even termi- 

 nations of the nasals, which are in a line with the posterior 

 extremities of the premaxillaries. 



Hab. Great Redang Islands, near Trengganu, East Coast 

 of tiie Malay Peninsula (type from Great Redang). 



Tgpe. Adult female. S.M. 2407/10. Collected 2nd Sep- 

 tember, 1910. Original number 3720. 



Ten specimens examined. 



Mus surifer grandis, subsp. n. 



A large member of the surifer group, characterized by the 

 markedly robust skull and unusually heavy rostrum, which is 

 deeper and possesses broader and longer nasals than in any 

 otiier race. Colour less bright than in the typical M. surifer. 



Ilab. Great Redang Islands, near Trengganu, East Coast 

 of the JNlalay Peninsula. 



Type. Adult male. S.M. 2206/10. Collected 2nd Sep- 

 tember, 1910. Original number 3698. (Type from Great 

 Redang.) 



Fourteen specimens examined. 



Mus surifer flavigrandis, subsp. n. 



In size subequal to 31. s. grandis, but with a larger hind 

 foot. Pelage somewhat brighter, sides of muzzle and lower 

 cheeks yellow, not white, and white area of throat much 

 narrower. Skull generally similar and equally robust, but 

 the nasals extending posteriorly beyond the lachrymal notches. 



Hah. East Perhentian Island, near Trengganu, East Coast 

 of the Malay Peninsula. 



Type. Adult male. S.M. 2220/10. Collected 12th Sep- 

 tember, 1910. Original number 3682. 



Nine specimens examined. 



