from the Orinoco, Venezuela. 437 



tail-coverts darker cream-colour, the abdomen more banded 

 with white, and the tibia more uniform and darker cas- 

 taneous. 



This species has not previously been noticed in Venezuela. 



21. Hypotriorchis femoralis (Temm.). 

 Angostura. A young male in bad plumage. 



22. Cerchneis sparverius isabellinus (Swains.). 

 Angostura. (^ and $ ad. 



(J. Long. al. 175, caud. 118, culm. 13, tars. 34 millim. 



$ . Long, al. 187, caud. 125, culm. 15j, tars. 34 millim. 

 The male has the head unspotted dark grey, while the 

 female possesses a large red spot on the hind part of the 

 crown. The male has only a few black marks on the flaidcs ; 

 the black marks on the back and scapulars are not fewer 

 than in an old male from Guatemala. 



23. Milvago chimachima (Vieill.). 

 Angostura. A young bird. 



Long. al. 275, caud. 182, culm. 23^, tars. 50 millim. 



24. Poi YBORus auduboni, Cass. 

 Angostura. An adult in faded plumage. 



Long. al. 395, caud. 218, culm. 38, tars. 95 millim. 



25. Cathartes aura pernigra (Sharpe). 

 Angostura. Two skins, an old and a younger bird. 

 Long. al. 500-508, caud. 243-255, culm. 27^-29, tars. 64 



millim. 



The shafts of the primaries are brown above, white be- 

 neath, the secondaries margined with greyish white. These 

 birds agree generally with specimens from Santa Catharina, 

 Brazil, but are somewhat blacker, have shorter wings, and 

 the colour of the head seems to be of a more yellowish red. 

 The base of the bill between the nostrils and the naked skin 

 of the front is of a much clearer yellowish (not dark) red. 

 But on the whole I am not quite satisfied as to the real dis- 

 tinctness of C pernigra, Sharpe. 



26. Cathartes urubitinga, Pelzeln. 

 Angostura. An adult. 



Long. al. 468, caud. 215, culm. 27, tars. 58 millim. 



