May, 1921] A Revision of Dciidroica 247 



same sex of Dciidroica audiiboni mcniorabilis, with more black both 

 above and below. 



Measurements. — Male:^ wing, 78-85. 5 (average, 81.8) mm.; tail, 

 58-68 (62.8); exposed culmen, 10-10.5 (10.2); tarsus, 18.5-20 (19.4); 

 middle toe with claw, 11.3-12.8 (12). 



Female:- wing, 75-77.5 (average, 7().l) mm.; tail, 57-61 (58.5); 

 exposed culmen, 9.5-10.8 (10.3); tarsus, 18.5-20 (19.3); middle toe 

 with claw, 11.7-12.8 (12.2). 



Type Locality. — Pinos Altos, Chihuahua, Mexico. 



Geographic Distribution. — Southern Arizona and north- 

 western Mexico. Breeds north to the Huachuca Mountains 

 in central southern Arizona, and southeast through western 

 Chihuahua to southern Durango. 



Remarks. — This race of the Audubon warbler occurs in 

 the United States only in the Huachuca Mountains, Arizona. 

 Birds of this species from all the other adjacent ranges are, as 

 already explained, referable to Dendroica aiidiiboni memorabilis. 

 Those from the Huachuca Mountains are, furthermore, in 

 color somewhat intermediate between Dendroica auduboni 

 nigrifroyis and Dendroica auduboni memorabilis, as would be 

 expected from their geographic" location, but are decidedly 

 nearer the former. Comparative average wing measurements 

 of males are as follows: Chihuahua, 81.3; Huachuca Moun- 

 tains, Arizona, 82.3. 



Of this subspecies 29 specimens have been available, from 

 the subjoined localities. 



Arizona. — Huachuca Mountains (Aug. 19, 26, and 30, 1902); 

 July 1 and 13, 1902; July 31, 1893; May 11, 20, and 26, 1903; 

 June 21, 1902; April 5, 1903; May 9, 1902). 



Chihuahua. — Colonia Pacheco (June 3 and 9, 1909) ; Colonia 

 Garcia (July 4, 1888; July 3, 9. and 24, 1899; Aug. 5, 1899); 

 Pinos Altos (June 5, 1888, type). 



Durango.— Cerro Prieto (Sept. 10, 1898); El Salto (July 11, 

 1898). 



Dendroica auduboni goldmani Nelson. 



Dendroica goldmani Nelson, The Auk, XIV, No. 1, January, 

 1897, p. 66 ("Hacienda Chancol, Guatemala"). 



1 Nine specimens, from the State of Chihuahua, Mexico, and from Arizona. 

 ■- Eight specimens, from the States of Chihuahua and Durango, Mexico, and 

 from Arizona. 



