1871. ] Proceedings of the Asiatic Society, 227 
paucity, during summer, in Sikkim, of the migratory birds, which 
visit the plains of India during the winter, is pointed out, and the 
occasional replacement of those species which cross the Hima- 
layas twice in the year, but do not breed there, by allied forms 
which never leave the mountains except as occasional stragglers. 
The greater portion of the paper is devoted to notes on the range, 
habits, &c., of mammals and birds noticed by the writer in the 
Palearctic regions of Sikkim, with occasional descriptions of the 
rarer species, or of peculiar phases of coloration or plumage. ‘Two 
birds are described as new. These are— 
Montifringilla ruficollis, sp. nov. Pale umber above with darker 
streaks, the forehead whitish and the rump rufescent, a dark line 
from the lores, beneath the eye, and over the ear coverts; the 
latter and the sides of the neck ferruginous ; the outer web of the 
first primary, a wing band formed by a large spot on the basal 
portion of the inner web of most of the secondaries, and the greater 
part of the smaller wing coverts white ; all the basal portion of the 
tail feathers except the two middle ones cinereous, then a little 
white, and the tips for half an inch brown like the middle feathers. 
Lower parts white with two black diverging lines on the chin 
In the female the ferruginous collar is brown behind and appears, 
to extend across the front of the neck. Length 6 inches, wing 
3.75, tail 2.35, tarsus 0.82, bill from forehead 0.42, 
The general coloration differs from that of the three other 
species belonging to restricted Montifringilla. That it is not the 
winter plumage of Jf. Adamsi is proved by that bird having more 
white on the tail and much narrower brown tips to the outer 
rectrices than the present species, and by its having the ends of 
some of the secondary quills white. 
Otocoris Hlwesi, sp. nov. This is near O. penicillata, but distin- 
guished by the white of the sides of the neck intervening between 
the black of the cheeks and that of the breast. It is smaller than 
O. longirostris, and has a much shorter bill. The black on the head 
and breast is arranged as in O. alpestris, the back is pale fulvous 
brown with faint dusky streaks and passing into greyish lilac on the 
nape, back of neck, rump and wing coverts, the quills brown, the first 
primary with the outer web white, the middle rectrices the same 
