VOL. XVI, PP. I5H60 NOVEMBER 30. 1903 



PROCEEDINGS 



OF THB 



BIOLOGICAL SOCIETY OF WASHINGTON 



DESCRIPTIONS OF NEW BIRDS FROM SOUTHERN 



MEXICO. 



BY E, W. NELSON, 



The birds described below, with three exceptions, were ob 

 tained by Mr. Goldman and myself during our expedition in the 

 interest of the Biological Survey, to southwestern Mexico, in the 

 winter of 1902-1903. For favors extended during the prepara 

 tion of this paper, I wish to express my appreciation to Mr. 

 Robert Ridgway and Dr. Chas. W. Richmond, Curator and 

 Assistant Curator of Birds, in the National Museum. 



Geotrygon albifacies rubida, subsp. nov. 

 Guerrero Quail Dove. 



Type. No. 185,510 $ ad., U. 8. Nat. Mus., Biological Survey Coll. 

 Worn Omilteme, Guerrero, Mexico. Collected May 19, 1903, by E. W. 

 Nelson and E. A. Goldman. 



Distribution. Heavily forested slopes on coast side of the Sierra Madre 

 of Guerrero (above 5,000 feet). 



Subspecific characters. Generally paler than G. albifacies, with under- 

 parts more uniformly buff. 



Description. Generally similar to O. albifacie*, but chestnut of upper- 

 parts paler, with a more yellowish cast; underparts nearly uniform buffy, 

 * little darker on sides of body, with scarcely a trace of the ashiness on 

 breast so commonly present in G. albifacies. 



40-pRoc. BIOL. Soa WASH. VOL. XVI, 1903, (151) 



