1877.] W. T. Blaufortl— 0;i tie Metdd Rat. 291 



being about half an incli long. The whiskers slightly exceed the head in 

 length, most are black, some of those near the upper lip being grey or white 

 as a general rule, though not invariably ; in one specimen, perhaps young, 

 all are black. 



The ears are very thin, rounded, subovate, nearly naked outside and 

 inside, having only a few short hairs scattered over their surface. 



The feet are very light brown above, the soles flesh-coloured, with 

 a greyish tinge ; there are only five tubercles or pads, as a rule, on the hind 

 foot, the outer hinder tubercle being absent or rudimentary, and the inner 

 small : five nearly equidistant pads on the fore foot. The hallux of the fore 

 foot is quite rudimentary, but has a small teguline nail, the other nails are 

 compressed. The second digit is shorter than the fourth, the fifth terminates 

 nearly on a line with the junction between the third and fourth. On the 

 hind foot there is but little difference in the length of the three middle toes, 

 the third is a little the longest, the other two nearly equal ; in individuals 

 either may be slightly longer than the other ; the fifth is rather longer than 

 the first, but neither, without its claw, extends so far as the divisions 

 between the other toes. 



The tail is shorter than the head and body together, it is of moderate 

 thickness at the base, (the diameter is 0*2 inch in an adult male,) and tapers 

 gradually to the point ; it is closely ringed with scales and thinly clad with 

 short bristly hairs, which are blackish above, pale below. 



In the female there are two pairs of pectoral and two of inguinal mam- 

 mae, both of the latter far behind the anterior edge of the thigh, and un- 

 usually close together, the anterior being, in one adult female, only a quarter 

 of an inch from the posterior on the same side ; the pectoral mammae are, 

 as in many mice and rats, one pair, in front, inside the shoulders, and the 

 other pair behind the armpits. 



I have extracted two skulls, one from an adult male in spirit, the other 

 from the skin of a female. The general form differs but little from that of 

 most species of Mus. The upper surface is slightly convex, the convexity 

 being more pronounced on the nasal portion. The ante-orbital foramen is 

 large, the zygomatic arch moderately stout. The incisive (anterior palatal) 

 foramina are of great length, and extend back for some distance bstween 

 the anterior molars. The bony palate between the molars is not nearly so 

 narrow as in Golimda Mllioti, nor are the molars so broad. The latter ap- 

 pear to differ in no respect from those of other species of Mus. The inci- 

 sors in both jaws are deep orange, not sulcated in front ; those of the upper 

 jaw nearly flat in front, those of the lower jaw convex. 



The following dimensions are those of a male and female, both fully 

 adult, preserved in spirit. 

 37 



