126 



55. MUS PELLAX, Mill. 



(J20G9. Chcras, Selangor. 



$ T S. 50. Klang Gates, Selangor. 



[Once one is familiar with tliis rat it is very readily distinguished 

 from 3It(s surifer, though at first sight it is very liable to be confounded 

 with worn and shabby specimens of that species. 



It is somewhat smaller, and the upper surface is duller brown, 

 without any tawny element in the pelage. Usually, bixt not invariably, 

 there is a small white spot between the ears. The best diffei-ential 

 character, however, is in the skull in which the nasals are invariably 

 prolonged beyond the premaxillaries, which is never the case in 

 Miif^ surifer. The species is frequently associated with Mks mrifer, 

 but in some localities occurs alone. — H. C. R. and C. B. K.] 



5C. MUS CREMORIVENTER, Mill. 



$ 119, 170. Maxwell's Hill, Perak, 3,600 feet. 



[This rat is widely distributed over the noi-thern parts of the 

 Peninsula, but has not yet been found south of Perak, and what 

 appears to be the same form is found on the islands of LangkaAvi and 

 Terutau on the west coast. — H. C. R. and C. B. K.] 



57. MUS CONCOLOR, Bltth. 



<? 160, 162 ; ? 155, 163. Maxwell's Hill, Perak, 3,600 feet. 



S 167. Taiping, Perak. 



,?1179, 1183. Tanjong Surat, S.-E. Joliore. 



(J 1209, 1211, 1212. Tanjong Penang, Sungei Lebam, S.-E. Joliore. 



(? 1217. Tanjong Boi, S.-E. Johore. 



J1267, 1286. Si Karang, S.-E. Joliore. 



? 847. Tinggi Island, East Coast of Joliore. 



<? 726. Tanjong Tombak, Bintang Island, Rliio Archipelago. 



<? 777. Pasir Panjang, Bintang Island, Rhio Archipelago. 



(? 1000 ; ? 997. Sauh Island, Rhio Archipelago. 



<? 1406, 1407, 1408, 1409, 1410, 1411. Balei, Karimon Island, Rhio Archipelago. 



[So far as our experience goes, invariably associated with human 

 beings. Miller has separated the form occurring on Tioman Island as 

 Mus pullus, and several other allied forms have also been described 

 from various islands, all of which approach very closely this species 

 or its Sumatran representative Mus ephip'pmm, Jent. Comparison 

 with authentic specimens from Burmah is required before the group 

 can be dealt with adequately. — H. C. R. and C. B. K.] 



5S. MUS VOCIFERANS, Mill. 

 S68, 80, 113 ; ? 63, 92, 96, 172. Maxwell's Hill, Perak, 3,600 feet. 

 (? 142 ; ? 124, 135, 146. Giinong Ijau, Perak, 4,700 feet. 

 '^ 42. Klang Gates, Selangor. 

 <? 1289, 1291 ; ? 1257. Si Karang, S.-E. Johore. 



[Very common throughout the Peninsula, wherever collections 

 have been made, in hilly, jungly country from sea-level to over four 

 thousand feet. On certain of the higher hills its place appears to be 



