123 



U\. MUS UATTl S inilOMS. 



Thos. and Wrought., I.e., p. 441 (lIH'lt). 



c?727, 7;W, 755, 705, 77-i, 81G, 817; V G'JO, 71:?. 71 I, 7;U, 7;i8, 7W, 7i7, 818. 



liintang Island, Rhio Archii)elaj,'o. 

 <? 907, 9i7, 987. Batam Island, Rhio Archipelago. 

 (?905. Saiih Island (between Bintanj,' and Batam Ihhuidh). 



A form of mttus of the rnfescens type of colouring, but darker tliun 

 liny other form known from this Archipelago. 



Fur fairly long (18-20 mm. long on back) with coni{)arativi'lv ft-w 

 scattered spines. Individual hairs of the back grey witli a one-third 

 tip of " buff ; " below white to their bases. The general colour ul>uve 

 and below separated by a not very distinct dividing line. 



Dimensions of the Type (taken in the flesh) : 



Head and body, 187 ; tail, 187 ; hind foot, 35 ; ear, 2u mm. 



Skull : greatest length, it ; basilar length, 36 ; zygomatic i>ri-udtli. 

 20; braincase breadth, 16; diastema, 13; upper nmlar .series. «>.7 iniii. 



Habitat. — Bintaug and Batam Islands, lihio Archipekigo (tyiH; 

 from Biutang Island). 



Type — Adult male. B. M. No. 9, 4, 1, :32-2. Original iuiuiIht 

 739. 



The long series quoted above includes animals «>f both sexes ami all 

 ages which are remarkably uniform in their general appeanmco. 



[One of the most distinct of the " rattus " group that we have met 

 with in the region, on account of its dark colouration.— H. C. K. and 

 C. B. K.] 



47. 5IUS KLOSSl, Bu.NU. 



(? 2061 ; ? 2019, 2023. Cheras, Sclangor. 



J 1208, 1210. Tuujong Penang, Sinif,'ei bebani, S.-K. Johurc. 



(? 1265. Si Karang, S.-E. Johure. 



c? 735, 756. Pasir Panjang, Bintang Island, Rhio AiTlii|>cluK«>. 

 These undoubtedly represent Bonliote's Muxhhixsi,* but tln'v agnv 

 so closely with Miller's description of Mio^ a^per from Tnmg in the 

 Nothern' Malay Peninsula that we think it prolxible tliat further 

 material will show the two forms to l>e iudistingui.shable. 



[We are both familiar with the true J/w" klng^i, one of the origiiml 

 specimens from Pelepah,t Johore, being now in the S*'hiugur Muwuiu 

 collection. We had been inclined to refer the serie.s. li«t«Hl aU>ve an.l 

 numerous other specimens in our coUwtion. to Mu^ afj>er. Miller. 

 though we have never seen a specimen from the typi.-al hn-ality : 

 for though the lineal dimensions nearly agree, Mu^ klog^i in th.- flwb i« 

 verv less bulkv than these, and might almost 1« desiTibtHl as a mua«j 

 and not a rat.' The question is further complicat^il by the occurrenw 



* r. Z. .S., 1906, i>. 0. 



t Sjini. b'. of Mr. Ikmhotc's List, 



