RESULTS FROM THE MAMMAL SURVEY. 411 



The measurements of these specimens vavij be recorded for 

 comparison : — 



Head and bodj^ 25omm. ; tail 260; hindfoot 53; ear 31. 

 Skull, greatest length 53-7 ; condj^lo-incisive length 51-2 ; 

 zygomatic breadth 26-8; nasals 24-4 ; palatilar length 25*4 ; 

 palatal foramina 9*6; upper molar series 9"8. 



Epimys mackenziei, sp. n. 



Size rather less than in E. ferreocanus, therefore considerably less 

 than in E. bowersi, found in the same region. Fur thin, sparse, 

 with little underfur, hairs of back about 15mm. in length. General 

 colour of back iron grey (not Ridgwaj^'s iron grey, more neai'l}^ his 

 '• deep purplish grey " but browner) finely grizzled with whitisli. 

 Sides lighter grey. TJndersurface creamj^ white, the hairs white to 

 their bases, line of demarcation on sides not verj" sharplj' defined. 

 Head like back. Ears large, naked, grey. Hands whitish, more 

 or less brown on the centre of the metacarpals. Feet similarly dull 

 whitish, with some brown on the metatarsals. Tail long, coarse- 

 ly scaled (about 10 rings to the centimeter) grej'-brown above, 

 inconspicuously pale below for its basal three-fifths, then abruptly 

 white all round, scales and hairs, the terminal hairs not markedlj^ 

 lengthened. Mammae 3 — 2 = 10. 



Skull, apart from its smaller size, very like that of E. hoverd, the 

 braincase proportionally rather sinaller, and the bullae also smaller, 

 the incisors, as in that species, set very verticall}', not bent in 

 towards the throat. 



Dimensions of the type, measured in the flesh : — 



Head and body 234mm. ; tail 248 ; hindfoot 48 ; ear 30. 

 Skull, greatest length 51 ; condylo-incisive length 49*4 ; 

 breadth 26*4; nasals 20-5 ; interorbital breadth 7 ; breadth of 

 brain case 19-3 ; palatilar length 24-7 ; palr.tal foramina 9-5 ; 

 upper molar series 8" 8. 



Hah. — Chin Hills. Type from 50 miles west of Kindat, 5,000'. 



%je.— Adu.lt female. B. M. No. 16.3.26.65. Original number 

 340.' Collected 26th April 1915 by J. M. D. Mackenzie and 

 given by him to the Bombay Natural History Society. Presented 

 by the Society to the National Museum. About a dozen specimens 

 examined. 



It is to Mr. Mackenzie's fine series that the discrimination of this 

 species is due, and I have much pleasiire in connecting- his name 

 with it. An earlier specimen from the Khasia Hills was in Mr, 

 Blanford's collection, but owing to its having no skull, was never 

 definitely determined. 



Further south again Signor Fea obtained the specimens I referred 

 with some doubt to Mus hoiversi, but renewed examination shows that 

 they may be considered as a special subspecies of the present animal. 



