454 APPENDIX (l^rN'TOTILTID.'E), 



■with wliite ; "wing-coverts like the back ; bastard-wing black, with 

 a conspicuous white edging ; primary-coverts black, edged with 

 grey ; quills black, margined with bluish grey, the inner secondaries 

 with a broad edging of white and more narrowly tipped with the 

 same ; upper tail-coverts and tail-feathers black, the fourth feather 

 with a white tip, the Trhite increasing on the third, and still more 

 on the penultimate and external tail-feathers, which have only a 

 diagonal mark of black across the base, the shafts even becoming 

 white towards the end of the feathers ; crown of head glossy blue- 

 black ; lores pure white, extending in a narrow line above the eye ; 

 cheeks, ear-eoverts, and entire under surface of body pure white, 

 the sides of the fore neck and breast washed with blue-grey ; thighs, 

 under tail-coverts, under wing-coverts, and axillaries pure white ; 

 quills blackish below, white along the edge of the inner web. 

 Total length 4-1 inches, culmen 0-45, wing 1-85, tail 1-75, tarsus 

 0-65. 



Hah. Unknown. 



a. Ad. sk. [South America.] Sclater Collection. 



13. Polioptila albiloris. 



Polioptila albiloris, Scl. S^ Salv. P. Z. S. 1860, p. 298 ; iid. Ibis, 

 1860, p. 397 ; Owen, Ibis, 1861, p. 61, pi. 2. fig. 3 ; Baird, Revieiv 

 Amer. B. p. 70 (1864) ; Oray, Hand-l. B. i. p. 237, no. 3440 

 (1869) ; Scl. <§• Salv. Nomencl. Av. Neutr. p. 4 (1873) ; Lmvr. Bidl. 

 U.S. Nat. Mus. no. 4, p. 12 (1876) ; Salv. ^ Godm. Biol. Centr.- 

 Amer., Aves, i. p. 53, pi. 5. figs. 1, 2 (1879). 



Adult male (type of species). General colour above dark blue- 

 grey, with dull whitish ends to the long feathers of the rump ; wing- 

 coverts like the back ; bastard-wing feathers black, distinctly mar- 

 gined with greyish white ; primary-coverts and quills blackish, 

 edged with blue-grey, more hoary on the primaries, the inner 

 secondaries more broadly edged with white ; upper tail-coverts and 

 tail-feathers black, the three outer feathers white, black on the 

 inner webs, the black decreasing towards the outermost feather, 

 which has not more than the basal third of the inner web black, 

 increasing to about one half of the inner web on the penultimate 

 feather, the third white for the greater part of the outer web and at 

 tip of the inner one ; crown of head glossy blue-black, forming a 

 cap which extends to the occiput ; a distinct loral streak of white ; 

 feathers round the eye and upper edge of ear-coverts black ; lower 

 part of ear-coverts, sides of face, cheeks, throat, abdomen, and under 

 tail-coverts white ; fore neck, breast, sides of body, and thighs 

 delicate bluish grey ; axillaries and under wing-coverts ashy white ; 

 quills dusky blackish below, whitish along the edge of the inner 

 web. Total length 4*5 inches, culmen 0-5, wing 1-95, tail 1-9, 

 tarsus 0*7. 



