546 U.S. NATIONAL MUSEUM BULLETIN 221 



It is doubtless now impossible ever to trace the true history of this speci- 

 men of a South American form. See Grinnel, Univ. California Publ. Zool. 

 38:322, 1932. 

 Geothlypis bairdi "Nutting" Ridgway 



in Nutting, Proc. U.S. Nat. Mus. 6: 398, Apr. 26, 1884. 

 =Geothlypis semlflava bairdi Ridgway. See Hellmayr, Catalogue of 

 birds of the Americas 8: 441, 1935. 



91150. Adult male. Hacienda "Los Sabalos" (on the Rio San Juan, 

 about 30 miles from the east shore of Lake Nicaragua), Department 

 of Chontales, Nicaragua. May 15, 1883. Collected by Charles C. 

 Nutting. Original number 935. 



91151. Adult male. Hacienda "Los Sabalos," Department of Chontales, 

 Nicaragua. May 2, 1883. Collected by Charles C. Nutting. Original 

 number 828. 



91152. Adult female. Hacienda "Los Sabalos," Department of Chon- 

 tales, Nicaragua. May 14, 1883. Collected by Charles C. Nutting. 

 Original number 928. 



Geothlypis speciosa P. L. Sclater 



Proc. Zool. Soc. London 26: 447, January-May 1859. 

 89906. Subadult male. Mexico. 1858. Collected by Henri L. F. de 

 Saussure. Received from Philip L. Sclater (in whose private collec- 

 tion it was No. 169b), who acquired it from the Museum d'Histoire 

 Naturelle, Geneva. 

 Sclater had three cotypes, "an adult male, a young male, and a female." 

 The two adults are now in the collection of the British Museum (Natural 

 History). 

 Geolhlypis nelsoni microrhyncha Ridgway 



Birds of Middle and North America 2 : 685, Oct. 16, 1902. 

 143333. Adult male. Real del Monte, State of Hidalgo, Mexico. March 

 13, 1891. Collected by Clark P. Streator. Received from the U.S. 

 Fish and Wildlife Service. 

 Geothlypis poliocephala ralphi Ridgway 



Proc. U.S. Nat. Mus. 16: 692, Feb. 5, 1894. 

 129348. Adult male. Brownsville, Cameron County, Texas, May 4, 

 1893. Collected by Frank B. Armstrong. Received from William L. 

 Ralph. 

 Geothlypis poliocephala Baird 



Review of American birds 1: 220 (in key), 225, April 1865. 

 =Geothlypis poliocephala poliocephala Baird. See Wetmore, Proc. U.S. 



Nat. Mus. 95 : 72, 1944; Miller, Auk 36: 290-291, 1919. 

 34017. Adult male. Mazatlan, State of Sinaloa, Mexico. June 14, 1862. 

 Collected by Andrew J. Grayson. Original number 16. 



