SCIENTIHC RESULTS FROM THE MAMMAL SURVEY. 1057 
part far in advance of those held by the majority of his contem- 
poraries ; and it is with great pleasure and satisfaction that I now 
find myself able to confirm some of the results, derisively received in 
the past, at which he arrived in 1845. 
1. Rattus rattus arboreus, Buch. Ham. 
This subspecies enters Nepal, where it appears to be restricted to 
the Terai, The specimens now before me are indistinguishable from 
typical examples from Bengal. 
Material examined . — The following are the external measurements, taken in 
the flesh by the collector, of those examples of which the skull measurements 
are recorded in Tables I and II : — • 
No. 
Head and 
Body. 
Tail. 
Hindfoot. 
Ear. 
35 
5 Bairia 
146 
220 
35 
21 
71 
S Hazaria 
160 
226 
35 
24 
70 
9 
156 
225 
33 
26 
2. Rattus rattus rufescens, Gray. 
Bairia, s 1 ; Hazaria, c? 4, 5 4. 
Quite typical examples. Evidently the “ parasitic ” phase R. r. 
arboreus as it occurs in the Terai. 
3. Rattus rattus brunneusculus, Hodgson. 
1841. Mus decumanoides (in part). Hodgson. J. A. S. B. x., p. 
915 (nomen nudum.) 
1845. Mus brunneusculus, Hodgson. Ann. Mag. N. H. xv., p. 
267. 
1881. Mus alexandrius, var. rufescens, Thomas. P. Z. S. 1881, 
p. 533. 
Mus rattus, Blanford (in part.) 
Size small (HF. about 34 mm. ; condylo-basal length about 40). 
General form as in normal Indian subspecies of R. rattus. Mammte 
3-3=12. 
General colour of upper parts rather bright brown,. Underparts 
pure white with the lateral lines of demarcation sharply defined. 
Skull rather li.ghtly built with the frontal beads normally developed. 
As compared with that of brunneus, it differs in having the braincase 
relatively broader, the temporal ridges more closely approximated 
posteriorly, the postraolar region shorter, the nasals, palate and tooth 
rows longer. For skull measurements see tables at pp. 1064-66. 
Type: — B. M. 45.1.3.353. Nepal. Presented bv B. H. Hodgson, 
Esq. 
