522 NEW BIRDS FROM THE LOWER AMAZON. 



black. Length (skin);3.o(); wing 1.80, tail 1.50, exposed cul men .27, tar- 

 sus .45. 



The specimens of T. clatus with which this bird has been compared 

 are four in number, as follows : Two from Bogota, one from the Magda- 

 leua River, Colombia, and one irom Cayenne. These measure as fol- 

 lows: Length (skins) 3.40-4.00; wing 2.00-2.15, tail 1.70-1.90, exposed 

 culmen .27-30, tarsus .50-.52. 



7. Attila viridescens, sp. nov. 



Sp. char. — Similar to A. sclateri Lawr., but rather smaller, with bill 

 decidedly smaller ; the entire back and scapulars olive-green instead of 

 russet, wings and tail much less brown, yellow of rump and upper tail- 

 coverts paler, throat and chest without dusky sh'aft-streaks, under wing- 

 coverts very pale dull sulphur-yellow, and sides scarcely tinged with 

 yellow. 



Habitat. — Lower Amazon Valley (Diamantina Mountain). 



Adult wmYe (Diamantina Mountain, July 5, 1887 ; C. B. Eiker) : Head, 

 neck, and chest olive-green, paler anteriorly and beneath, the chin, 

 throat and chest streaked with pale sulphur-yellow, but without dusky 

 streaks; forehead and crown narrowly streaked with dusky; back and 

 scapulars plain olive-green, anteriorly similar i6 color of head, but pos- 

 teriorly tinged with brown; rump and upper tail-coverts gamboge-yel- 

 low ; wings dusky, the middle and greater coverts broadly tipped with 

 light olive, tinged with russet, and rather indistinctly edged with dull 

 olive; tertials plain brownish olive, secondaries edged with grayish 

 olive; tail grayish olive-brown, the inner webs tinged with rufous next to 

 shafts, the latter light cinnamon or tawny ; under parts chiel3y white, 

 the breast broadly but rather indistinctly streaked with ash-gray; 

 sides and flanks tinged with sulphur-yellow ; anal region pale gamboge- 

 yellow ; under tail-coverts white, tinged with yellow; under wing- 

 coverts pale straw-yellow ; bill brownish black, middle portion of lower 

 mandible whitish, legs and feet dusky (plumbeous in life?). Length (skin) 

 6.50; wing 3.25, tail 2.70, exposed culmen .75, bill from nostril, .55, tar- 

 sus .90. 



8. Thamnopliilus inornatus, sp. nov. 



Sp. char. — Somewhat like T. imirinus Natt., but without brown on 

 wings, and lower parts much deeper cinereous. 



Habitat. — Lower Amazon (Diamantina Mountain). 



Adult male (Diamantina INIountain, Lower Amazon, June 30, 1887) : 

 Above uniform slate-gray, the wings scarcely different from the back 

 and without any distinct markings (the tips of the wing-coverts being 

 only a very little paler than the general color), and the interscapulars 

 without white at base ; feathers of forehead and supercilium (especially 

 the former) very indistinctly varied with small, hoary grayish spots and 

 blackish shaft-streaks. Lower parts uniform light ash-gray, deeper 

 laterally, where, however, decidedly paler than upper parts. Under 



