BIRDS OF WORTH AND MIDDLE AMERICA. 669 



(20.07); depth of bill at base, 12.46-13.72 (12.70); tarsus, 25.40-28.70 

 (26.42); middle toe, 17.02-19.81 (17.78).' 



Adult female.— Length, (skins), 198.12-210.82(204.98); wing, 93.22- 

 101.60 (99.06); tail, 86.36-94.49 (91.44); exposed culmen, 19.81-20.83 

 (20.07); depth of bill at base, 12.70-13.46 (12.95); tarsus, 24.89-27.69 

 (25.65); middle toe, 18.03-19.30 (18.80).' 



Western Mexico, in States of Sinaloa (Mazatlan; Presidio; Limon- 

 cito), Durango(Chacala), Jalisco (San Sebastian), Colima (Colima), and 

 Oaxaca (Putla), and territorj- of Tepic (Tepic; San Bias; Santiago). 



Saltator plumbiceps " Baird, MS." La whence, Ann. Lye, Nat. Hist. N. Y., viii, 

 May, 1867, 477 (Mazatlan, Sinaloa; U. S. Nat. Mus.). 



ISalkdor'] plumbiceps Gray, Hand-list, ii, 1870, 75, no. 7099. 



Saltator plumbeiceps Lawrence, Mem. Bost. Soc, N. H., ii, 1874, 274 (Mazatlan; 

 Tepic; plains of Colima; habits; descr. nest and eggs).— Salvin and God- 

 man, Biol. Centr.-Am., Aves, i, 1883, 329 (Mazatlan and Presidio, Sinaloa; 

 plains of Colima; Putla, Oaxaca).— Sclater, Cat. Birds Brit. Mus., xi, 

 1886, 289.— Lantz, Trans. Kansas Ac. Sci., 1896-97 (1899), 223 (Limoncito, 

 Sinaloa). 



SALTATOR ALBICOLLIS ISTHMICUS (Sclater). 

 PANAMA STEEAXED SALTATOR. 



Adults {sexes alike). — Above plain olive-green, duller and more or less 

 tinged with grayish or pileum, brighter and more yellowish on edges 

 of remiges; rump and upper tail-coverts light grayish brown or brown- 

 ish gray, the tail clearer gray; sides of head and neck similar in color 

 to pileum, relieved by a narrow and sometimes indistinct supraloral 

 line of dull whitish or pale yellowish, the upper eyelid and middle 

 portion of lower eyelid also whitish or pale yellow; under parts 

 mainly whitish, tinged with olive-yellowish across chest and along 

 sides, where broadly streaked with olive, the breast and abdomen with 

 narrower and darker streaks; under tail-coverts pale dull buffy, usually 

 with more or less distinct shaft-streaks of dusk}^ grayish; sides of 

 throat olive or grayish, forming a more or less distinct submalar stripe, 

 the median portion of the throat usually immaculate whitish; bill black, 

 in younger birds with more or less of the tip, the gonys, etc., light 

 colored; legs and feet dusky horn color in dried skins (grayish blue 

 in life?). 



Adult male.— Length, (skins), 166.10-184.15 (177.04); wing, 86.36- 

 91.95 (89.92); tail, 79.26-87.63 (83.57); exposed culmen, 17.27-19.05 

 (17.78); depth of bill at base, 13.21-14.99 (14.22); tarsus, 22.36-24.13 

 (23.11); middle toe, 16.24-17.78 (16.26).' 



' Seven specimens. 



^ Six specimens. 



' Ten specimens from Isthmus of Panama. 



