THE GENUS CHORDEILES SWAINSON OBERHOLSER. 119 



a large whit© spot on the middle portion of the inner vane, this spot 

 47 mm. long on the inner edge of the vane, 29 mm. in length along 

 the shaft, which for this space is also white; remaining primaries 

 mostly white, with some dark brown at the bases, principally on outer 

 webs, and with broad dark brown ends which have narrow paler or 

 whitish tips; secondaries, except the innermost three, chiefly white, 

 with basal portion of inner webs and broad ends dark brown, the 

 latter somewhat mottled with lighter brown and narrowly tipped 

 with brownish white ; the next secondary white, but with an increased 

 amount of dark brown on the base and on outer vane ; the -end also 

 broadly dark brown, mottled with lighter and tipped with whitish, 

 but with an additional broad bar of dark brown ; next secondary (the 

 second from innermost) nearly all dark brown, with a large spot 

 of cream white on the middle portion of inner web, several spots of 

 pale brownish buff, and a narrow tip of brownish white ; innermost 

 secondary and the tertials light broccoli brown, terminally inclining 

 to buff, vermiculated, and irregularly and narrowly barred with dark 

 broccoli brown ; anterior rows of lesser wing-coverts dark brown like 

 the wing-quills, spotted, barred, and tipped with buff, pale brown, and 

 brownish white ; remaining upper wing-coverts also dark brown, but 

 so heavily spotted, vermiculated, and irregularly barred with pale 

 broccoli brown, buff, ochraceous buff, cream buff, pale clay color, and 

 brownish white as to appear very much like the upper parts, though 

 decidedly lighter; sides of head and neck for the most part finely 

 mottled with dull white, cream buff, grayish hair brown, and broc- 

 coli brown, the ear-coverts nearly plain light clay color, with a few 

 narrow streaks of dark brown, the postauricular region ochraceous 

 buff, with conspicuous dark brown streaks ; chin buft'y white, with a 

 few obscure brownish spots; broad crescent on throat, white; jugu- 

 lum pale grayish buff, with broad streaks of dull white, numerous 

 small spots, and narrow, more or less imperfect, bars of broccoli 

 brown ; remainder of lower parts cream white, the breast with broken 

 bars and spots of broccoli brown ; axillars cream white ; inner lower 

 wing-coverts also cream white, unmarked, the outer ones dark brown 

 like the wing-quills, conspicuously spotted and brokenly barred with 

 cream white, cream color, cream buff, and ochraceous buff; posterior 

 lower wing-coverts plain light brownish gray. 



Measurements. — Female (type) : Wing, 162 mm. ; tail, 89 ; exposed 

 culmen, 7.5 ; tarsus, 13.5 ; middle toe, 14. 



Taczanowski ^ gives the following dimensions of a male : Wing, 

 162 mm. ; tail, 87 ; middle rectrix, 76 ; bill, 23 ; ^ bill from nostril, 5.0 ; 

 tarsus, 13. Of a female : Wing, 153 ; tail, 89 ; middle rectrix, 75 ; bill, 

 24;- bill from nostril, 5.0; tarsus, 13. 



1 Ornith. P^rou, vol. 1, 18S4, p. 215. 

 3 Measured probably from rictus. 



