NO. 1639. NEW BIRDS FROM EASTERN ASIA— CLARK. 473 



DRYOBATES LEUCOTOS USSURIANUS Clark, new subspecies. 



Type. — Cat. No. 108896 U.S.N.M. ; female, Ussuri, eastern Siberia. 



Eeseinbles I). I. coreensis, to which it is most closely related, hut the 

 underparts are pure white, the rose red of the abdomen and under tail 

 coverts clearer and somewhat paler, and the black striations of the 

 under surface are fmer and less numerous, and are confined to the sides 

 of the chest and abdomen, not encroaching on the median area, giving 

 the bird a much less streaked appearance. 



The measurements of the type are, wing, 145 mm. ; tail, 93 mm. ; 

 culmen, 34 mm.; tarsus, 27 mm. 



GECINUS CANUS GRISEOVIRIDIS Clark, new subspecies. 



Type.— Cat. No. 114120 U.S.N.M.; male, Seoul, Korea; P. L. Jouy, 

 collector. 



This subspecies resembles G. c. jessoensis Stejneger, but is darker 

 and duller throughout. The gray of the head is darker than in G. c. 

 jessoensis, but is washed with greenish as in that form. The green of 

 the back is washed with gray, approaching G. c. perpallidus Stejneger. 

 The underparts are of a darker gray than in G. c. jessoensis, with less of 

 the greenish wash, especially on the flanks and under tail coverts. 



It differs from G. c. perpallidus from Ussuri in being darker through- 

 out, with the green on the back brighter and contrasting more strongly 

 with the gray of the head. The under surface is darker, with a slight 

 greenish tinge, and the head is slightly washed with green. 



Compared with G. c. canus from Norway, G. c. griseoviridis is duller 

 green on the back, and darker gray below. 



A comparison with G. c. zimmermanni Keichenow from Shantung 

 shows that G. c. griseoviridis differs in being much greener on the back, 

 with a more greenish tinge below. G. c. zimmermanni seems to be a 

 darker southern race of the Siberian G. c. pterpallidus , as G. c. griseo- 

 viridis is a darker southern race of G. c. jessoensis of Hokkaido. 



Pallas's name Picus cMorio "■ can not be applied to any one of the 

 east Asiatic subspecies of Gecinus canus, having been proposed as a 

 substitute for Gmelin's Picus canus. ^ 



The average measurements of four males from Seoul and Gensan, 

 Korea, are, wing 145 mm.; tail, 96.5 mm.; culmen, 35 mm.; tarsus, 

 26.5 mm. 



The average measurements of three females from Seoul and Gensan 

 are, wing, 146 mm.; tail, 97 mm.: culmen, 33 mm.; tarsus, 26 mm. 



"Zoogr. Rosso.-Asiat., I, 1811, p. 408. &Syst. Nat., I, 1788, j). 4;U. 



