1.887.1 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 597 



dimensions it agrees much better with the latter, being altogether smaller 

 than the former; bat the bill is shaped more like that of T. hrasiliensis, 

 its lateral profile being decidedly conical or rapidly taperiug, with iiearlj- 

 straight outlines, the culmen especially being almost devoid of any per- 

 ceptible curve. In coloration, however, both in its adult and young 

 stages, the i^resent species is as distinct from any of its congeners as they 

 are from one another. 

 Department of Birds, U. S. National jMuseum, 



December 9, 1887. 



