10.j8 journal, BOMBAY NATURAL HIST. SOCIETY, Vol. XXVIII. 
Material examined.—ln addition to the type, the following specimens, collected 
for the Mammal Survey by Lt.-Col. R. E. Kennion and the Society’s collector 
N. A. Baptista. have been examined. — Nagacot 4, 9 6 ; Bouzini, ^2, 9 2; 
Chalna-Khel,^ 2, 9 2 ; Thankot, ^ 1, 9 2 ; Pattibhagan (8,000'), 9 1 ; Sipari, 
1, 9 1 ; Kakhani (7,000'), ^ 1 ; Ramchi (11,000'), 9 1 ; Total 29 adults. 
The following are the dimensions of the more important specimens : — • 
No. 
Head and 
Body. 
Tail. 
Hindfoot. 
Ear. 
61 
9 Pattibhagan 
233 
34 
22 
270 
9 Thankot 
162 
208 
33 
24 
273 
d 
160 
205 
35 
24 
241 
(S Chalna-BLhel 
165 
210 
35 
25 
296 
S Sipari . . 
177 
2.30 
36 
25 
36.5 
c-T Nagarkot .... 
165 
214 
33 
24 
357 
d 
140 
178 
33 
23 
124 
9 „ .. .. 
167 
197 
31 
25 
313 
cJ Bouzini 
140 
190 
.32 
24 
2 
cS Kakani . . 
160 
180 
33 
22 
193 
9 Sunachir 
185 
202 
35 
23 
Average of 27 adults : 
162 
203 
33-4 
24-3 
Average per cent, of head 
and body measurement. 
100 
126 
20-7 
15 
This subspecies appears to be most closely related to R. r. sikki- 
mensis, agreeing with the latter in possessing 12 mamnue, in general 
outward appearance and coloration, and in the general character of 
the skull. The proportions, however, seem to be rather different. 
In sikkimensis the head and body and hind foot measurements in 
adults average 154 mm. and 32.2 respectively, the maximum values 
in the long series examined being 174 and 35 ; in the present form the 
corresponding averages are 162 and 33.4, the maxima being 186 and 
36. The Nepal form would seem to attain a greater weight than 
sikkimemis : for according to Hodgson brunneusculus weighs 9 to 
10 oz., while no specimen of the many weighed in Sikkim by the 
i\Iammal Survey exceeded 7 oz. On the other hand the skull of 
brunneusculus averages slightly smaller and is relatively a little 
broader throughout than that of sikkimensis. The temporal ridges 
are more normally bowed as a rule than in the^^latter, and they are 
rather less closely approximated behind. 
4. Ratius rattus brunneus, Hodgson. 
1841. dccumonoides (in part), Hodg.son. J. B. A. S., x., p. 915 
(nomen nudum). 
1845. Mus brunneus, Hodgson. Ann. Mag. N. H. xv., p. 266. 
1881. Mus decumanus, Thomas. P. Z. S. 1881, p. 532; Blanford 
No. 274 (in part ; nee Pallas). 
