Mrs (snnrioR) (jrwhis. 

 Kloss, Ann. and Mag. Nat. Hint. (H), vii., p. ll'.», I'.UI. 

 Type.— Adult male (skiu and skull), No. 22(X>/10, Relangor 

 Museum, collected on Great Redan^' Island, off TlH•n^,'^'alMl, .-aMt couwt 

 of the Malay Peninsula. 2nd S^'pt-MiilxM-. UMo. ],y (;. liodfn Klo«»«. 

 Orii,'inal No." 8«59R. 



Characteks. — A lar<^t> nieiuhor of tlic niiii/'-r -^rouj), unt riMjuirin;;, 

 on account of its very rolmst skull, any cloKe coniimrison witli 

 allied fonns. 



Colour. — Upj^er-parts ochracoous, clouded on s]i(iul«ifr>. I>a<-k and 

 I'ump with the dark brown tips of the spines, but (dear»'r on top of hrad 

 and almost pure on cheeks and sides of nock, fon'-linibs, sides an«l 

 thi<>hs : top of muzzle •yreyish -brown, sides white. 



Under-parts white,' this colo\u- continued to f<ire-fe«'t down the 

 inner side of thij^dis, thouj^h not reaehinLf the heel, and extending 

 Ijeyond the throat and chin to lower cheeks, upj>er lip and sides <if 

 muzzle, where it includes the roots of many of the vittrissa- : scrotum 

 white. Viewed from below the yellow sides of head an<l n»H-k an- not 

 visible. 



Fore- and hind-feet white above, tail Idack^above, paler at tip : 

 white below. 



Skull and Teeth. — As compared with skulls of otlier s»;/yVr nits 

 that of M. (jrandi.'i is more robust and is t'si>e(ially remarkable for its 

 large and heavy rostrum which is mxich l»roader and deejier. als<i tlje 

 nasal bones are broader and the incisors heavier; there is a j,'reater 

 flare to the zygomatic arches and the infra-orbital plates (instead of 

 having their anterior edges perpendicidar or receding backwards from 

 above) slant forward considerably. The interpterygoi.l sj.aee {h 

 distinctly wider, but the molars do not differ notably, and as in all th.« 

 snrifer rats the palate is narrowest at the posterior molar. 



Measurements. — Collector's external measurements of t\\>*' : hv.nl 

 and body, 204; tail, 188; hind-foot, 42 ; ear, 2:^. Cranial measun-nient«: 

 greatest'length, 49 (— )* ; basal length, 41.7 (43.t5) ; na.sal length. 19.8 

 ( — ) . shortest distance between tip of nasals and hudirymal notch 

 20.4 (—); palatal length. 22 (22.7); diastema. 1:^.4 (14.7): molar 

 length, 7.5 (7.0) ; length of foramina, (i.9 ( 7.2) ; breadth .>f .onibin.Hl 

 foramina, 3.9 (4.0) ; zygomatic breadth. 21 (22.4) ; .ranial breadth. 17.2 

 (17.8) ; depth of rostrum at anterior e.xtremity of foramina. 9.3 (i>.6); 

 breadth of rostrunx midway l)etween heuselion and foramina, 8.0 (8.0). 

 Specimens Examined. —Fourteen, all fmm the tyiK' Kn-aHty. 

 Remarks.— The entire .series is in very abni.led jM-Ligeand the colour 

 given for the upper-parts must only U> n>garded a.s apprtuiumtely 

 correct. The robust skull and larg»' si/.e of this rat - immaturr- 

 individuals with unw,n-n teeth In-ing e.pial to fully grown adultn of 

 other races— i-ender it very distin.-t. antl it forms a notable exception to 

 the general nde that insidar races an' smalh-r than thos«> of the same 

 specie** iuliabiting the mainland. 



* Mea8nio.noMt.s in pni-enthcses th.-so of n nmlo (.S.M. 2308/10. >^,th n.m 

 teeth from the type locahty. 



