28 Nelson — Neiv Birds from Nortjnvestcrn Mexico. 



rufous ; under surface of ])ody much like mesoleucus but the flanks a little 

 darker ashy. 



Measurements of ti/pe.—Win^9o; tail 105; culmenl3.5; tarsus 26. 



General notes. — The strongest character of P. f. iniermedius is the absence 

 of rusty rufous on the crown and the trrayer back as contrasted with the 

 rusty crown and brownish gray back of both mesoleucus and albiyuht. 



Cardinalis cardinalis affinis subsjD. nov. Sonora Cardinal. 



Tijpe No. 164258, $ ad., U. S. Nat. Mus., Biological Survey Collection, 

 from Alamos, Sonora, Mexico. Collected January 28, 1899, by E. A. 

 Goldman. 



Distribution. — Coast region of southern Sonora and northern Sinaloa, 

 Mexico. 



Subspecific cliaracfers. — Size of Cardinalis c. iqneus from which the females 

 may be distinguished by narrower bill, grayer upper parts, and duller or 

 less huffy under parts ; dark chin patch absent as in igneus. The males 

 scarcely distinguishable from those of igneus except by their slenderer 

 bills. 



Dimensions of type. — ^Wing 92; tail 104; culmen 17; width of bill at 

 base 12 ; tarsus 25. 



General notes. — Cardimdis c. affinis is much more like C. c. igneus of the 

 Cape St. Lucas region than like C. c. superbus of southern Ai'izona and 

 northern Sonora. C. c. superbus is a much larger bird and the female is 

 browner above, more huffy ochraceous below, and has a distinct dark 

 chin patch. An adult female from Tucson, Arizona, measures : Wing 

 104; tail 123; culmen 19; width of bill at base 13.5 ; tarsus 27. 



Cardinalis cardinalis sinaloensis subsp. nov. Sinaloa Cardinal. 



7VpeNo. 164375, 9 ad., U. S. Nat. Mus., Biological Survey Collection, 

 from Culiacan, Sinaloa, Mexico. Collected March 18, 1899, by E. A. 

 Goldman. 



Distribution. — Coast plains and foothills of central and southern Sinaloa, 

 and probably south to Colinia, Mexico. 



Subspecific characters. — Size nearly the same as that of Cardlntdis c. 

 igneus, but bill longer and slenderer ; color of male lighter and more vivid 

 red ; color of female above, darker and grayer but with more red on wings 

 and tail ; below darker and more bi'ownish fulvous with an indistinct dark 

 grayish chin patch. Compared with C. c. superbus, size much smaller; 

 male brighter, more carmine red ; female — above, darker gra}', below 

 darker, more brownish fulvous. The female differs from that of C. c. 

 affini.'i in its smaller size and nuich darker and more brownish fulvous 

 color of under parts. 



Dimensions of li/pr. — Wing 87; tail 96; culmen 18; tarsus 26. 



Arremonops superciliosa sinaloae subsp. nov. Mazafclan Sparrow. 



Tg]ie No. 164888, J" ad., U. S. Nat. Mus., Biological Survey Collection, 

 from vicinity of Mazatlan, Sinaloa, Mexico. Collected April 6, 1899, by 

 E. A. Goldman. 



