SCIENTIFIC RESULTS FROM TEE MAMMAL SURVEF. 
Size large (H.F. about 38 mm. ; condylo-basal length about 44). 
General torm, robust and heavy, the animal presenting a strong 
superficial resemblance to the Brown Rat {R. norvegicus — “ decum- 
anus”). Essential characters (tail, ears, feet and skull) those of R. 
rattus. Mammaj 3-3=12. ’ 
General colour of upper parts dark brown, more or less grizzled with 
grey or black. Under parts, in the typical form., dusky with a more 
or less well-marked rusty or buffy suffusion — the ventral hairs having 
slaty bases and lighter tip.s. In “ wild-coloured ” individuals the 
underparts pure white, the ventral hairs being white to their bases. 
Skull strongly built, with iinusually coarse frontal beads. As com- 
pared with that of the other Nepalese sub-species it is characterised 
by its larger size, relatively narrow braincase, the comparatively wide 
separation of the temporal ridges posteriorly, longer postmolar region, 
shorter nasals, palate and tooth-rows. These differences are illustrat- 
ed by the measurements in Table II. 
Co-types. — Three specimens in the British Museum (B. 1\I. 43.1.12.61, 
69 and 131) are co-types of Hodgson’s species. Of these I select B.IM. 
43.1.12.69 as the lecto-type, the other two becoming lecto-para- 
types. 
Material examined. — Besides Hodgson’s specimens I have before me the 
following specimens collected in Nepal for the Mammal Survey by Lt.-Col. 
Kennion and N. A. Baptista : — Ferping, $ 5 ; Hathiban, 9 7 ; Chalna-Khel, 
$ 1 ; Katmandu, ^ 1 ; Godaveri, 7,000', 2 2 ; Changoo, d 2, 2 5 (including 
2 juv.) Total 29 (27 adults). 
The following are the external measurements of the more important 
specimens: — ■ 
No. 
Head and 
Body. 
Tail. 
Hindfoot.. 
Ear. 
20S 
a. Typical brunneua : — 
2 Hathiban 
180 
208 
37 
27 
194 
d 
177 
230 
39 
28 
233 
2 Ferping 
170 
212 
38 
27 
237 
2 
184 
235 
39 
28 
Average of 13 adults 
174 
215 
37.7 
27.2 
Average per cent, of head 
and body measurement . . 
100 
124 
21.7 
15.6 
347 
b. Wild coloured brun- 
neu.s : — 
2 Changoo 
165 
203 
35 
354 
2 
162- 
215 
35 
26 
352 
d 
184 
37 
27 
Average of 5 adults 
168.6 
201 
35.6 
24.4 
Average per cent, of head 
and body measurement. 
100 
119 
21.2 
14.5 
