TYPE SPECIMENS OF BIRDS 7 



4500 bis. Immature female. Shoalwater Bay, Pacific County, Washing- 

 ton. March 15, 1854 or 1855. Collected by James G. Cooper. Pacific 

 Railroad Survey, Line of the 47th Parallel. 



Genus AECHMOPHORUS Coues 



Podiceps occidentalis Lawrence 



in Baird, Cassin, and Lawrence, Rep. Expl. and Surv. R.R. Pac. 9: liv, 



894, 1858. 



=Aechmophorus occidentalis (Lawrence). See Peters, Checklist of birds 

 of the world 1 : 40, 1931. 



9925. Adult male. Fort Steilacoom, Pierce County, Washington. April 

 21, 1856. Collected by George Suckley. Original number 320. Pacific 

 Railroad Survey, Line of the 47th Parallel. 



9926. Adult (sex not indicated). Fort Steilacoom, Pierce County, Wash- 

 ington. October 10, 1856. Collected by George Suckley. Original 

 number 583. Pacific Railroad Survey, Line of the 47th ParalleL 



9928. Adult (sex not indicated). Fort Steilacoom, Pierce County, Wash- 

 ington. October 8, 1856. Collected by George Suckley. Original 

 number 580. Pacific Railroad Survey, Line of the 47th Parallel. 

 Lawrence wrote of "six specimens in the collection," but in fact listed 

 seven. No. 9927 was sent long ago to the University of Michigan; the other 

 three cotypes, Nos. 4497 bis (not 4497), 4498 bis, and 9544, have vanished 

 from the museum without trace. 

 Podiceps clarkii Lawrence 



in Baird, Cassin, and Lawrence, Rep. Expl. and Surv. R.R. Pac. 9: liv, 



895, 1858. 



=Aechwophorus occidentalis (Lawrence) . See GrinneU, Univ. California 



Publ. Zool. 38: 261, 1932. 

 4498. Immature (sex not indicated) . San Pablo Bay, "probably within 



Solano County" {fide Grinnell, loc. cit.), California. November 1855. 



Collected by John S. Newberry. Pacific Railroad Survey, California 



Line. 



9930. Adult female. Laguna de Santa Maria, State of Chihuahua, Mexico. 

 Entered into the museum register on March 24, 1858. Collected by 

 John H. Clark. Original number 30. Pacific Railroad Survey, Cali- 

 fornia Line. 



9931. Immature male. Santa Barbara, Santa Barbara County, California. 

 Entered into the museum register on March 24, 1858. Collected by 

 Adolphus L. Heermann. Pacific Railroad Survey, California Line. 



This form was described from the three cotypes listed above. Grinnell 

 {loc. cit.), following a manuscript decision of Richmond's, has designated 

 No. 4498 as lectotype and accordingly fixed as type locality "San Pablo Bay, 

 probably within Solano County, and not far from Vallejo." It is true that 

 an unidentified hand has long since written "Type specimen" on the label 



500936—61 2 



