92 NOVITATES ZOOLOOICAE XXV. 1918. 



east to the upper courses of the Mekong, Blue and Yello\\- Rivers. In winter 

 in India. 



Caknulrdla hrachyductyla dukhunensis has the same wing formula as 

 C h. hrachydactyla and its other subspecies, i.e. the fourth primary is considerably 

 shorter than the first three, which alone form the tip of the wing. It is very 

 similar to C. b. longipennis Imt the upperside is less rufescent, the underside less 

 wliitish, more yellowish brown or buff. This form is by no means resident in 

 India, as Sharpe imagined, but only a winter visitor. The breeding area is not 

 yet known, but it is probably north of Tibet, north of the Altyn-Tag, Humboldt 

 and Nan-shan ranges, in and about the Gobi desert. From there it wanders 

 to India, and eastwards to Setchuan and even to the shores of eastern China, 

 where J. D. La Touche's collectors found it in numbers' in April on the 

 Shaweishan Islands. Przewalski found it akeady on migration in August, when 

 he met large flocks of freshly moulted specimens on the way southwards. 



