123 



middle toe, 1.30-1.55. Five outer primaries with inner webs emargin- 

 ated ; fourth and fifth quills longest; third next; first siiortest. Tail 

 even or very slightly rounded. Lower parts mostly white, without trans- 

 verse bars, the tibi;e pale ochraceous. 



Adult male (specimen in Coll. O.Salvin, from Trinidad or Venezuela): — 

 Above, blackish plumbeous, the pileum darkest; longer upper tail- 

 coverts very narrowly tipped with white. Tail light brownish-slate, 

 narrowly tipped with white, and crossed by four broad bands of dull 

 black. These bands, except the subterminal one, rather narrower than, 

 the interspaces. Lower parts pure white; the feathers of the throat, 

 cheeks, and breast with fine shaft-streaks of black ; tibi;e plain i)ale 

 reddish-ochraceous and lining of wing tinged with the same. Inner 

 webs of primaries white, gradually becoming slate-color terminally, and 

 marked with distinct transverse spots of darker slate, these spots or 

 bars being six in number (counting the distinct ones) on the fourth 

 quill. Lores whitish, with black shafts to the feathers; suborbital 

 region and upper and posterior border of the auriculars plumbeous- 

 black. Occipital feathers pure white beneath surface; scapulars with 

 large concealed spots of white. Wing, G.80; tail, 6.00; culmen, 0.40; 

 tarsus, 1.90 ; middle toe, 1.25. 



Adult female : — Above slate-color, with a brownish cast; tail light- 

 brownish slate (sometimes with a narrow white tip), crossed by four or 

 five broad bauds of dull blaek. Lower parts as in the male. Wing, 

 7.85-8.40; tail, 6.60-7.30; culmen, 0.50-0.52; tarsus, 2.10-2.25; middle 

 toe, 1.50-1.55. 



Young (both sexes): — Above, dark slate-brown (the pileum nearly 

 black), each feather indistinctly bordered terminally with pale fulvous. 

 Tail light grayivSh-brown, crossed by four broad bauds of dull black. 

 Lower parts as in the adult, but feathers of the breast and sides with 

 faint longitudinal stripes of dilute brown, these wider and more rufous 

 ou the sides. 



Among the adult females before us, four in number, there is but slight 

 variation to be noticed, three of them being quite alike, while the re- 

 maining one, a specimen from Sau Gerouimo, Vera Paz, Guatemala 

 (No. 2272, Mus. Salv. aud Godm.), differs in having the lower parts 

 quite extensively' tinged with ochraceous, especially on the breast and 

 sides, while the anterior portions are destitute of the usual dusky shaft- 

 streaks. 



List (Did mcasuremeni'i of sjyecimeiis examined. 



Locality. 



"Trinidafi or Vene/',nela''[?.'].icr ad. 

 Guatemala (Medio Moute)..jc<'jiiv. 



Guatemala (Vera Paz) ? ad. 



Guatemala (Savana Graude)' 2 ad. 



e. Guatemala (Vera Paz). 



ad. 



f. Guatemala (Vera Paz) j? ad. 



,'/. Guatemala (VolcandeFuego) i'uxv. 



ceo 



7.00 

 8.20 

 8. !.■> 

 8.00 



7.85 

 8.40 

















o 













" 



X 



a 



















zz 







r3 



rt 



;3 



cS 





H 



o 



H 



3 



6.00 



0.40 



1.90 



1.35 



6.10 



P. 4-2 



2.00 



1.30 



7.00 



0.50 



2.20 



1.50 



6.80 



0.52 



2. 15 



1.50 



6. 6U 



0.52 



2.10 





fi.90 



0.50 



2.20 



1.55 



7. :iO 



0. 50 



2.25 



1.50 



Remarks 



August 22, 1873. 



Lauqniu ; Mar., 1860 : No. 2274. 



Pacific side ; Xo. 2-i73. 



Sau Gerouimo ; July, 1862 ; No. 



2272. 

 CUoctun : Jan., 1860 ; No. 2275. 

 Aug., 1873 ; altitude, 8,000 feet. 



