484 



PATAGONIAN EXPEDITIONS! ZOOLOGY. 



Back: Mantle and lower back dull seal-brown, almost black, finely- 

 powdered and vermiculated with buffy white ; the rump and upper tail- 

 coverts immaculate, dull, very dark seal-brown, almost black. 



Fig. 244. 



Fig. 245. 



Mctopiana pcposaca. Male. P. U. O. C. 8698. 

 Profile of head and neck. Reduced. 



Mctopiana peposaca. Male. P. U. O. C. 8698. 

 Bill and head from above. Reduced. 



Tail : Dark seal-brown, the outer webs of the outer rectrices vermicu- 

 lated with grayish ; from below, the rectrices have a silvery gray appearance. 



Wings : Scapulars dull seal-brown like the mantle and powdered in the 

 same way with minute dotting and vermiculation of buffy white ; primaries 

 white, with dark seal-brown tips, and the four or five outer ones have the 

 outer webs dark seal-brown ; secondaries white, with broad tips of dull seal- 

 brown, forming a border to the white speculum posteriorly ; some of the 

 inner secondaries have the margins of the outer webs narrowly bordered 

 with seal-brown and the white of the outer webs powdered with dusky ; 

 tertials dull glossy bottle-green ; upper wing-coverts dull seal-brown, pow- 

 dered and vermiculated very finely with buffy white, the greater series 

 broadly tipped with glossy dark bottle-green, forming a band of that color 

 between the shoulder and the white speculum ; the entire shoulder of the 

 closed wing is white at the edge ; under wing-coverts white, except some 

 marginal ones, which are blackish ; the axillaries are white, the longer ones 

 vermiculated with slaty at their tips. 



Lower parts : Breast concolor with the neck, black ; chest, sides, flanks 

 and abdomen definitely vermiculated with dull gray and dusky brownish ; 

 the whole is glossy and the markings are finer and less definite on the 

 chest and belly, and better defined on the sides and flanks ; the under 

 tail-coverts, immaculate white, reach almost to the end of the rectrices, 

 concealiner them. 



