266 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxi. 



shore a few miles farther east on the same island. " I heard a num- 

 ber" lie writes, "bat only saw the two I shot. The voice is a very 

 hiyh-pitched thin little whistle, kept up several minutes at a time like 

 the 'scolding-'' of bigo-er squirrels." 



Family MURID.E. 



MUS FIRMUS Miller. 



1902. Mas //r/»».s Mi LLKR, rroc. Acad. Nat. Sci. rhilmlelphia, p. 155, June 11, 

 1902. (Linga.) 



Great Karimon (5), Sugi (5), Sugi Bawa(8), Moro Besar (2), Bakong 

 (4), 8ebang(2), Linga(5). 



This is a common rat throughout the- Archipelago, though not as 

 abundant as the meml)ers of the rattus and surifer groups. For 

 measurements see table, page 268. 



MUS LINGENSIS Miller. 



1900. Mils lingeiisis MiLLKH, Proe. Washington vVcad. Sci., II, p. 206, August 20, 



1900. (Linga.) 

 1902. Mus Vmgensis Miller, Proc. Acad. Nat. Sci. Philadelphia, p. 154, .Tune 11, 



1902. ( Linga and Sinkei^. ) 



Great Karimon (21), Sugi (2), Sugi Bawa {-!), Batam (4), Bintang (6), 

 Moro Besar (1), Moro Kechil (7); Bakong (22), Sebang (8), Linga (17), 

 Penuba (6), Sinkep(33). 



The local form of the Ifus sui'ifer group appears to be the most 

 abundant and generally distributed member of its genus. Considerable 

 variation is shown by the 127 specimens collected 1\v Doctor Abbott; 

 but taken as a whole the series from the Archipelago is noticeabl}' less 

 brightly colored than that from the Malay Peninsula. For measure- 

 ments see table, page 267. 



MUS near RATTUS. 



Great Karimon (1), Sugi (2), Sugi Bawa (6), Batam (2), Kundur (1), 

 Moro Kechil (11), Bakong (4). 



Members of the Mu8 roMus group are very generally distributed 

 throughout the Archipelago. The twelve skins collected by Doctor 

 Abbott are all of the aJrxandrinus tj^pe of coloring, but the series are 

 not sufficiently extensive to show whether more than one local form 

 is represented. In the six skins from Sugi Bawa the belly is uni- 

 forml}' light butf, conspicuously paler than the dull 3'ellowish-brown 

 underparts of the two from Pulo Sugi. The four from Bakong are a 

 peculiar slaty brown below. Two of the skins from Batam (male No. 

 142128 and male No. 142129) show no special peculiarities; underparts 

 pale cream-butf. The third (male No. 142132) has much the same color- 

 ing as those from Sugi. The tail is, however, more finely annulated 



