THE GENUS CHORDEILES SWAINSOIST — OBERHOLSER. 63 



in the United States National Museum. The face of its hibel is as 

 follows : 



Pacific R. R. S. Near 38° L. Lt. E. G. Beckwith, U. S. 

 6696 Chordeiles lienry 

 Rio Grande A'alley Kreutzfeldt 10 



On the reverse side is the word " type " in Professor Baird's hand- 

 writing. This specimen was really taken in the San Luis Valley near 

 38° north latitude, in central southern Colorado, where Lieutenant 

 Beckwith's expedition is known to have traveled. Professor Baird 

 recorded this specimen as the type of Chordeiles virginianus Jienryi^ 

 but, possibly by typographical error, gave it the wrong number 

 (6690) ;^ and on the following page,- in the " List of specimens," still 

 another erroneous number (6698). This example is, however, not the 

 real type of CJiordeiles virginianus henryi^ which came from Fort 

 Webster, New Mexico, as we shall fully explain under that form,^ 

 and Professor Baird in considering it such was evidently under mis- 

 apprehension regarding the specimen on which Mr. Cassin based his 

 description of Chordeiles henryi^ This swpposed type is a female, 

 in Juvenal plumage, though full grown, with spotted throat and 

 much mottled upper surface, and is undoubtedly an example of the 

 present race, Chordeiles virginiamis howellL 



Specimens examined. — I have examined 106 examples of this new 

 race, from the localities below : 



Colorado. — Loveland (July 23^ 1895) ; Kio Grande (June 10, 13, 

 and 15, 1873) ; Colorado Springs (June 24, 1873) ; Barr (June 4, 

 1910) ; Wray (May 21, 1909) ; San Luis Valley, near 38° north lati- 

 tude; Denver (July 7, 1888) ; mountains west of Denver. 



/^^^no^s.— Warsaw (May 20, 1884). 



Kansas. — Fort Hays (June 3, 6, 7, 8, 10, and 12, 1871) ; Republican 

 Eiver (May 24 and 26, 1864) ; Republican River, 70 miles west of 

 Fort Riley (June 30, 1857) ; Turkey Creek (July 21^ 1857) ; Cairo 

 (July 29, 1892) ; Hamilton (July 11 and 17, 1913; Sept. 10, 1913). 



Minnesota. — Grant County (spring, 1877). 



New Blexico. — Socorro (Aug. 15, 1909, E. A. Goldman) ; Cuen^o 

 (June 13, 1903, V. Bailey) ; Cantonment Burgwyn (Sept. 2, 1859) ; 

 Sierra Grande (Aug. 17, 1903). 



Oklahoma. — Antelope Hills, 150 miles west of Fort Cobb (June 7, 

 1860) ; Lawton (June 30, 1905) ; Chattanooga (July 4, 1905). 



T^ea-a*.— Henrietta (July 30 and 31, 1900; Aug. 18, 1892; Aug. 1 



1 Rep. Explor. and Surv. R. R. Tac, vol. 0, 1S58, p. 153. 



2 Idem, p. 154. 



3 See pp. 68-69. 



* Cassin, Illustr. Birds Cal., Texas, Ore., Brit, and Russ. Amer., vol. 1,' 1855, p. 239. 



