44 BIRDS AND MAMMALS OF EAST SIBERIA. [^Vo^ 



P.N.E.Z.C. 



V 



be distinguished from American examples by their smaller bills, 

 rather grayer backs and paler yellow throats. In general colora- 

 tion and in size these specimens more nearly approach American 

 examples than they do the West European Otocoris alpestris flava 

 (Gmelin). All three races are closely related, but, we believe, 

 should be kept apart as subspecies. The European form is slightly 

 the smallest in size, and the color of the nape, rump and bend of 

 wing is more pinkish than in the other two races. Both old-world 

 forms have small bills as compared with the American, 0. a. alpes- 

 tris (Linn.). This arrangement has already been partly suggested 

 by Oberholser. 



In giving a new name to the East Siberian form, we assume, 

 as is almost certainly the case, that the Alouette de Siberie, Planches 

 Enluminees, 650, the type of Gmelin's name, came from West 

 Siberia, and is identical with the shore lark of northwestern 

 Europe, and that Otocoris alpestris striata (Brehm) is therefore a 

 synonym. 



Type from Nijni Kolymsk, Kolyma, East Siberia, adult cf , in 

 breeding plumage, no. 64,038, M. C. Z., collected May 14, 1912, 

 by Johan Koren. 



MEASUREMENTS (in millimeters). 



Alauda arvensis pekinensis Swinh. 



One adult male was secured at Nijni Kolymsk, May 26, 1912. 

 It evidently is a very rare bird in the region under consideration. 

 This was the only one seen. 



