November 4. 1919 Vol. VII, p. 27 



PROCEEDINGS 



OF THE 



NEW ENGLAND ZOOLOGICAL CLUB 



AN UNDESCRIBED SONG SPARROW 

 FROM ALASKA 



BY WINTHROP SPRAGUE BROOKS 



Examination of three song sparrows from North Semidi and 

 Choviet Islands, Semidi Islands, Alaska, taken during April by 

 Mr. Joseph Dixon and myself, revealed a color character leading 

 to the inference that this is an insular race peculiar to this small 

 but well-isolated group. It may be called 



Melospizia cineria semidiensis subsp. nov. 

 Semidi Island Song Sparrow 



Type, adult male, no. 67,069, coll. Museum of Comparative Zoology, 

 North Semidi Island, Semidi Islands, Alaska, April 19, 1913, collected by 

 W. S. Brooks (orig. no. 33). 



Characters. — Similar in size to Melospiza cineria sanaka, but under 

 parts more gray; the markings of the breast and cheeks less rufescent. 

 In this coloration it is intermediate between M c. sanaka and M. c. insignis. 



Measurements of type. —Wing, S6.5; tail, 70.5; culmen, 15.5; tarsus, 

 27.5 mm. 



