48 BULLETIN- 50, UNITED STATES NATIONAL MUSEUM. 



of slate-gray; similar also to P. c. caucse a but darker color of posterior 

 under parts, less decidedly black, much less extensive, and much less 

 abruptly contrasted with gray of abdomen, etc. 



Adults (sexes alike).— Above plain chestnut, deepening into bay on 

 tail and fading into more rufous-chestnut on upper back and hind- 

 neck, the pileum duller, often more or less tinged with grayish brown; 

 remiges tipped with rather light grayish brown; tail bright bay, 

 faintly glossed with purplish, broadly tipped with white and crossed 

 by a broad subterminal band of brownish black, the white tip 

 becoming gradually (but not conspicuously) narrower toward middle 

 rectrices; shafts of rectrices black, sometimes passing into dark 

 chestnut basally; chin, throat, and upper chest plain vinaceous- 

 cinnamon, gradually deepening laterally into nearly the color of 

 pileum and nape on sides of head and neck; breast, abdomen, and 

 sides plain gray (no. 7 or no. 8) deepening into slate-gray on flanks, 

 thighs, and anal region, the under tail-coverts black or slate-black, the 

 longer ones usually indistinctly tipped with whitish; under surface 

 of tail, anterior to the white tip, uniform brownish black; bill, and 

 naked orbital space yellowish green to light olive-green; iris carmine 

 red; legs and feet light bluish gray (in life). 



Young. — Similar to adults but middle rectrices without white tip 

 or subterminal black area, and other rectrices with the white tip 

 much narrower and not preceded (on upper surface) by a definite or 

 sharply defined black area; texture of plumage different (softer and 

 more lax). 



Adult male— Length (skins), 385-485 (420); wing, 134-156.5 

 (146.4) ; tail, 233-309 (269.6) ; exposed culmen, 26-33 (29) ; tarsus, 

 30.5-41.5 (38.8); outer anterior toe, 21-27 (24.1). b 



Adult female.— Length, (skins), 381^84 (422); wing, 138-161 

 (142.9); tail, 237-306 (272.8); exposed culmen, 27-31 (28.7); tarsus, 

 35-40.5 (37.2); outer anterior toe, 22-26 (24) .« 



a See page 47. & Sixty-four specimens. « Thirty-six specimens. 



Locality. 



Two adult males from southern Tamaulipas 



Eight adult males from Vera Cruz 



Six adult males from Oaxaca 



One adult mae from Tabasco 



NineadultmlalBsfrom Yucatan 



Three adult males from Chiapas 



Three adult males from Guatemala 



Three adult males from British Honduras 



Six adult males from Honduras 



Three adult males from Nicaragua 



Ten adult males from Costa Rica 



Ten adult males from eastern Panama (Canal Zone). 



