Vol. XXVIII, pp. 105-108 May 27, 1915 



PROCEEDINGS 



^ OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



DESCRIPTIONS OF SOME NEW FORMS OF AMERICAN 

 CUCKOOS, PARROTS, AND PIGEONS. 



BY ROBERT RIDGWAY. 

 [By permission of the Secretary of the Smithsonian Institution.] 



The following new forms will be described more fully in Part 

 VII, Bulletin 50, U. S. National Museum ("Birds of North 

 and Middle America"). 



Coccyzus minor palloris siibsp. nov. 



Type, adult $ , U. S. Nat. Mus., No. 198,745, Pigres, w. Costa Rica, 

 February 3, 1905. Collected by R. Ridgway. 



Agreeing with C. m. minor in absence of gray tinge to buff of sub- 

 orbital and subanricular regions, sides of neck and chest, but much 

 larger and paler, the under parts pale cream-buff, and pileum distinctly 

 grayer than back, passing into clear gray anteriorly; closely resembling 

 C. m. maynardi in color of upper parts and posterior under parts, but 

 anterior under parts wholly pale buff, concolor with posterior portions, 

 and decidedly larger. Wing, 142; tail, 153.5; culmen, 30; tarsus, 28; 

 middle toe, 21.5 mm. 



Coccyzus minor rileyi subsp. nov. 



Type, adult c?, U. S. Nat. Mus., No. 191,153, Barbuda, Lesser Antilles, 

 August 23, 1903. Collected by H. G. S. Branch. 



Similar in coloration to C. m. nesiotes, but decidedly larger; similar to 

 C. m. vicentis, but smaller, color of upper parts slightly grayer and bill 

 narrower (in lateral profile) and decidedly more compressed. Wing, 

 141; tail, 162; culmen, 30 mm. 



Morococcyx erythropygus mexicanus subsp. nov. 



Type, adult c?, U. S. Nat. Mus., No. 29,235, Juchitdu, Oaxaca, 

 Mexico, March, 1862. Collected by F. Sumichrast. 



Similar to M. e. erythropygus but larger and paler, the upper parts 

 averaging more grayish olive, the under parts varying from cinnamon- 

 18— Proc. Biol. Soc. Wash.. Vol. XXVIII, 1915. (105) 



