432 BULLETIK 50, UNITED STATES NATIONAL MUSEUM. 



PIPILO FOSCUS INTERMEDIUS Nelson. 

 ALAMOS TOWHEE. 



Similar in coloration to F. f. potosinm but chin iind throat much 

 paler buff, in this respect resembling P. f. mesoleucm; decidedly 

 smaller than the latter, with upper parts darker, but at the same time 

 grayer, and pileum usually concolor with the back, or nearlj^ so, instead 

 of being distinctly rufescent. 



Adidt tiMle.— Length (skins), 195.58-205.74 (200.66); wing, 90.93- 

 93.47 (92.71); tail, 98.55-104.65(101.35); exposed culmen, 13.46-15.24 

 (14.22); tarsus, 24.89-25.40 (25.15); middle toe, 17.53-19.81 (18.54).' 



Adult feinah.— Length (skins), 196.85-203.20 (197.61); wing, 86.36- 

 91.95 (89.15); tail, 96.52-101.60 (98.55); exposed culmen, 13.46-14.48 

 (13.97); tarsus, 24.13-25.40 (24.64); middle toe, 16.51-18.80 (17.53).' 



Coast district of southern Sonora (Guaymas, Alamos, Batomotal, 

 Magdalena, etc.) and northern Sinaloa. 



Pipilo fusciis mesoleucus {not Pipilo mesoleuais Baird) Bblding, Proc. U. S. Nat. 



Mua., vi, 1883, 343, 344 (Guaymas, Sonora). 

 Pipilo fuscus intermedius Nelson, Proc. Biol. Soc. Wash., xiii, May 29, 1899, 27 



(Alamos, Sonora; U. S. Nat. Mus.). 



PIPILO FUSCUS MESOLEUCUS (Baird). 

 CANON TOWHEE. 



Similar to P. f. potosin-iis but still paler, especially the grayish-brown 

 of upper parts, sides, etc., with the pileum (except sometimes the fore- 

 head), always distinctly rufescent (inclining, more or less, to cinnamon 

 or cinnamon-rufous); tail, bill, tarsus, and middle toe longer. 



Admit //lafe.— Length (skins), 194.06-222.76 (204.98); wing, 88.65- 

 100.08(94.49); tail, 95.76-107.44 (102.87); exposed culmen, 14.22-16.76 

 (15.49); tarsus, 24.89-26.92 (25.91); middle toe, 17.27-19.56 (18.29.)' 



Adult female.— Length (skins), 196.85-221.49 (205.99); wing, 86.11- 

 99.57(91.19); tail, 94.23-109.47(99.82); exposed culmen, 14.48-16.26 

 (14.99); tarsus, 24.64-26.42 (26.40); middle toe, 15.49-18.80 (18.03).' 



Arid districts of lower and upper Austral provinces, iu Arizona, 

 southern and eastern New Mexico, western Texas, eastern Colorado, 

 (valley of Ai'kansas River, Pueblo County, etc.), and southwestern 

 Colorado (Wet Mountains, etc.), south to noi'theastern Sonora 

 (Granados, Nacory, etc.), and northwestern Chihuahua (San Diego, 

 Nuevenche Plain, Colonia Garcia, etc.). 



' Four specimens. ' Twenty specimens. 



'^ Five specimens. * Eleven specimens. 



