424 U.S. NATIONAL MUSEUM BULLETIN 221 



Genus MONTICOLA Boie 



Petrophila rufocinerea tenuis Friedmann 



Occas. Pap. Boston See. Nat. Hist. 5: 325, Sept. 2, 1930. 



=Monticola rufocinereus tenuis (Friedmann). See Jackson, Birds of 

 Kenya Colony and the Uganda Protectorate 2 : 959, 1938. 



217733. Adult male. Summit of Mount Lololokui, elev. 6,000 feet 

 ("twenty miles north-west of Archer's Post, near Uraguess," fide Jack- 

 son, op. cit, 1: xxxii, 1938), Northern Frontier District, Kenya Colony. 

 September 15, 1911. Collected by Edmund Heller. Original number 

 356. Paul J. Rainey African Expedition (1911) . 



Genus SI A LI A Swainson 



Sialia sialis episcopus Oberholser 



Proc. Biol. Soc. Washigton 30: 27, Feb. 21, 1917. 

 241188. Adult male. Santa Engracia, State of Tamaulipas, Mexico. 

 Dec. 15, 1911. Collected by Frank B. Armstrong. Received from the 

 U.S. Fish and Wildlife Service, which acquired it from Louis B. Bishop, 

 in whose private collection it was No. 23808. 

 Sialia azurea Baird 



Review of American birds 1 : 62, July 1864. 

 =Sialia sialis azurea Baird. See Griscom, Bull. Amer. Mus. Nat. Hist. 



64: 312-315, 1932. 

 28021. Adult (sex not indicated, but apparently male). Hacienda 

 "Mirador," State of Veracruz, Mexico. Entered into the museum regis- 

 ter on Mar. 24, 1863. Collected by Carl C. W. Sartorius. 

 Baird had a series of four specimens, but he implied, at the original 

 description, that No. 28021 was, in his eyes, the type. 



Griscom {loc. cit.) has discussed the extraordinary nomenclatorial tangle 

 brought about by Swainson's unsatisfactory introduction of the name azurea. 

 Although Griscom finally followed the decision of the A.O.U. Committee on 

 Classification and Nomenclature and called this form S. s. guatemalae Ridg- 

 way, to avoid disturbance of nomenclature "to no purpose," it is my own 

 view that Baird's name must be used. 



Baird considered Swainson's name a nomen nudum and invalid, 

 but "preferred to adopt his name rather than present a new one." It was 

 quite certainly Baird's intention, by carefully describing a type specimen, to 

 clothe the nomen nudum and bring it into literature under his own aegis, 

 and Hellmayr (Catalogue of birds of the Americas 7: 479, 1934) has erred 

 in treating Baird's name simply as a misapplication of Swainson's. 

 Sialia sialis guatemalae Ridgway 



Proc. U.S. Nat. Mus. 5 : 13, June 14, 1882. 

 =Sialia sialis azurea Baird. See Griscom, Bull. Amer. Mus. Nat. Hist. 

 64: 312-315, 1932; remarks under preceding form. 



