726 BULLETIN 50 UNITED STATES NATIONAL MUSEUM. 



00. Tail (not including filiform shafts) much less than 

 two-thirds as long as wing, the rectrices acumi- 

 nate, sometimes filiform, at tip; adult males 

 without crest, the under parts yellow, the upper 



black and scarlet Cirrhipipra (extralimital)o 



nn. Tail not much more (usually much less) than half as 

 long as wing. 

 o. Tail much less than half as long as wing; nostril nar- 

 row, broadly operculate; adult males with outfr 

 primaries normally liroad, the outermost (tenth) 

 not shorter than fourth, and without white throat. 



Pipra(p. 741) 

 GO. Tail at least half as long as wing; nostril broadly 

 oval or roundish, nonoperculate; adult males 

 with two outer jjrimaries narrow, the outermost 

 (tenth) not longer than second (sometimes shorter 

 than first), and with general color glossy blue- 

 black with white throat Corapipo (p. 753) 



a. Rictal bristles longer (the longest equaling or exceeding 1)111 in 

 length); wing more than five times as long as tarsus; sexes 

 essentially alike ii* color, plain olive-green or olive-green and 



yellowish Chloropipo (extralimital) ^ 



hh. Secondaries shorter, reaching to but little more than two-thirds as 

 far as tip of longest primaries; exposed culmen longer than mid- 

 dle toe (without claw). (Adult male plain olive-green above, 

 with or without a yellowish spot on crown, dull pale olive or yel- 

 lowish below.) Tyranneutes (extralimital) c 



gg. Mesorhinium l)road, nearly equal in length to rest of culmen; adult 



male entirely glossy black Xenopipo (extralimital) d 



ff. l>a(eral rectricc^s much less than two-thirds as long as middle pair, the 

 latter shorter, or at least not longer, than intermediate rectrices. 



Heterocercus (extralimital) « 

 ee. Tail more than two-thirds as long as wing. 

 /. Frontal feathers elongated, conspicuously antrorse and semierect; sexes 

 very different in color, the adult males deep black varied with bright 

 red or yellow. 



aCinhipipra Bonaparte, Consp. Av., i, 1850, 172. (Type, Pipra JUicaitda Spix.)— 

 Cirrhopipra (emendation) Sclater, Cat. Birds Brit. Mus., xiv, 1888, 289. — Teleonema 

 Reichenbach, A v. Syst. Nat., 1850, pi. 63. (Type, Pipra filicauda Spix.) Two 

 species, belonging to Amazonia, Colombia, and Venezuela. 



b Chloropipo Cabanis and Heine, Mus. Hein., ii, Oct., 1859, 90, footnote. (Type, 

 Pipra "Jlavicollis Scl., " i. e., P. flavicapiUa Sclater.) Colombia, Ecuador, and Guiana. 

 Two species. 



c Tyranneutes Sclater and Salvin, Proc. Zool. Soc. Lond., 1881, 2G9. (Type, T. 

 brachyurus Sclater and Salvin, =Pi/>ra virescens Pelzeln?.) One or two species, from 

 Guiana and Amazonia. Very distinct generically from Pipra! 



d Xenopipo Cabanis, in Wiegmann's Archiv. fiir Naturg., xiii, pt. i, 1847, 235. 

 (Type, X. atronitens Cabanis.) One species from Guiana and Lower Amazonia. 



« Heterocercus Sclater, Cat. Am. Birds, 1862, 245. (Type, Elsenia linleata Strickland.) 

 Three species, confined to upper Amazonia. 



