1899.] NATURAL SCIENCES OF PHILADELPHIA. 2^ 



Tringa alpina pacifica (Coues). 



Tringa alpina americana Cass. Baircl's Bds. of Am., p. 719. 



No type mentioned; name proposer! for the American bird as 



distinct from the European. 



Aegialitis nivosa Cass. 



Baird's Bds. of Am., p. 696. 



6,600 (U. S. N. M.). Presidio, Cal. Lt. Trowbridge. Ti/pe. 

 Buteo cooperi Cass. 



Buteo coo2Jeri Casii. Proc. Acad. Nat. Sci. Phila., 1856, p. 253. 



Type in U. S. National Museum. 



Buteo borealis calurus (Cass.). 



Buteo calurus Cass. Proc. Acad. Nat. Soi. Phila., 1855, p. 281. 



1,516. N. Mexico. Dr. T. C. Henry. Type. 

 Buteo lineatus elegans (Cass.). 



Buteo clcgans Cass. Proc. Acad. Nat. Sci. Phila., 1855, p. 281. 



1,544. rf California. I'ype. 

 Buteo swainsoni Bp. 



Buteo oxypterus Cass. Proc. Acad. Nat. Sci. Phila., 1855, p. 282. 



1,465. N. Mexico. Dr. T. C. Henry. Type. 



Another specimen (8,550) in the National Museum is recorded 

 by Ridgway as the type, but it is from Ft. Fillmore, while the type 

 is from Ft. Webster. Our specimen is marked type by Cassin. 

 Buteo insignatus Cass. Bds. of Cal. and Tex., p. 102. 

 " Type is in the Museum of the Nat. Hist. Soc. of Montreal." 

 This was a melanistic specimen. 



Buteo bairdii "Hoy " Cass. Proc. Acad. Nat. Sci. Phila., 1853, p. 451. 

 1,469. Wisconsin. Dr. Hoy. Type. 



This is a very light-colored individual. 

 Falco mexicanus Schleg. 



Falco polyagris Cass. Bds. of Cal. and Tex., p. 88. 



2,175. Source of the Platte. J. K. Townsend. 2'ype. 

 Falco peregrinum anatum (Bp.). 



Falco )iigricej)s Cass. Bds. of Cal. and Tex., p. 87. 



2,072. Bear creek, Cal. Kern. 2'ype. 

 Polyborus cheriway (Jacq.). 



Folyhorus uuduhoniQann. Proc. Acad. Nat. Sci., 1865, p. 2. 



Type in U. S. National Museum. 



Megascops asio trichopsis (Wagl.) 



t<cops mccallii Cass. Bds. of Cal. and Tex., p. 180. 



The only specimen in the Academy which could have been ex- 

 amined by Cassin is a very young bird, so that the type should be 

 selected from the National Museum series. 



