Vol. xl.] 100 
entirely white, inner three dusky black with only very slight 
white outer margins ; throat and cheeks the same as the top’ 
of the head; chest, breast, and belly vinous crimson, the 
feathers more or less edged with light smoky-grey, more 
grey on the belly and under tail-covert. 
Measurements.—Total length 165 to 175 mm., wing 74, 
tail 83, tarsus 17°5, culmen 8°5. 
Type. &, Reg. no. 98.11.-1.789, Seebohm Collection. 
Collected March 5th, 1882, by Kibort (?) at Tataschew (near 
Krasnoyarsk), South Central Siberia. 
The range of this form, so far as is at present known, is 
from the upper basin of the Yonesel, eastward to the edge 
of the Amur basin, and southward to some line north of the 
Altai Mountains. : 
There can be no question of this form representing either 
of the two names used by Pallas, for beside the fact that his 
two descriptions agree, and neither make mention of the dark 
smoky colour, the habitat of his sebirica was definitely given 
as the more southerly mountains of Siberia (“‘Colit frutticela 
densissima circa rivos et torrentes montanos australioris 
Sibiriae...”), and that of cawdata as the Altai and the 
whole of Hastern Siberia (“Jn populetis circa torrentes 
- intermontanos jugi Altaicz, Sojanensis, et totius Siberiae 
orientalis frequens avicula...”). 
The separating of this new form necessitates a revision of 
the members and their distribution of the whole genus. 
They are as follows :— 
1. Uragus sibiricus sibiricus (Pallas). 
Lowa sibirica, Pallas, Reise d. versch. Prov. d. Russ. 
Reichs. ii. Anhang, pp. 711 & 712 (1773). 
A large, rather pale bird, suffused in adult ‘males with 
rose, but colours not rich or intense: much white on the 
wing ; outer web of secondaries almost entirely white. 
Its habitat consists of the Altai and Thian Shan ranges, 
Zungaria, Western and possibly North-eastern and Northern 
Mongolia. 
