TYPE SPECDklENS OF BIRDS 277 



83981. Immature (sex not indicated). Demerara County, British Guiana. 

 Received, in July 1881, as part of the collection of Robert Ridgway, who 

 acquired it, in January 1879, as part of a private exchange of specimens 

 with Otto Lugger. 



*t30'- 



Genus PITANGUS Swainson 



Pitaugus sulphuratus texanus Van Rossem 



Trans. San Diego Soc. Nat. Hist. 9 (17) : 82, April 30, 1940. 

 135066. Adult male. Brownsville, Cameron County, Texas. December 8, 

 1893. Collected by Frank B. Armstrong. 

 Pitangus sulphuratus argenlinus Todd 



Ann. Carnegie Mus. 32 (5) : 291, February 15, 1952. 

 284392. Adult male. Lavalle, Province of Buenos Aires, Argentina. No- 

 vember 13, 1920. Collected by Alexander Wetmore. Original number 

 5352. Received from the U.S. Fish and Wildlife Service. 



Genus MYIARCHUS Cabanis 



M[yiarchus]. pertinax Baird 



Proc. Acad. Nat. Sci. Philadelphia 11: 301, 303 (not earlier than No- 

 vember 29), 1859. 

 =Myiarchus cinerascens pertinax Baird. See Hellmayr, Catalogue of 

 birds of the Americas 5 : 160, 1927. 



12944. Adult male. Cape San Lucas, State of Baja California, Mexico. 

 May 1857. Collected by John Xantus. Original number 186. 



12945. Adult female. Original number 185. Other data same as for 

 No. 12944. 



12946. Adult female. Original number 82. Other data same as for 

 No. 12944. 



A fourth cotype. No. 12943, a male, was sent in December 1885 to Fer- 

 nando Ferrari-Perez ; its present whereabouts is unknown. 

 Myiarchus nultingi Ridgway 



Proc. U.S. Nat. Mus. 5: 394, September 16, 1882. 

 =Myiarchus nuttingi nuttingi Ridgway. See Hellmayr, Catalogue of birds 



of the Americas 5 : 161, 1927. 

 87391. Adult male. Hacienda "La Palma," about 10 miles NW. of Colo- 

 rado, Province of Guanacaste?, Costa Rica. April 24, 1882. Collected 

 by Charles C. Nutting. Original number 243. 

 Carriker (Ann. Carnegie Mus. 6:348, 1910) defines the type locality 

 as "A small hamlet in the Canton de Nicoya, between the Gulf of Nicoya and 

 the city of the same name," but Nutting himself (Proc. U.S. Nat. Mus. 5 : 383, 

 1832) says "La Palma is situated about 10 miles northwest of Colorado, a 

 little hamlet on the northern coast of the gulf." It probably lies on the Rio 

 La Palma, shown on Carriker 's map as entering the Golfo Colorado just 

 north of the northeastern corner of the Isla Chira. 



