66 Mr. Swalnson on the 



6. Tachyphonus Suchii. Sp. Nov. 



T. olivaceus, infr& palliddfulvus ; cristdjlavd; alts nigris ; remigum pogoniis 

 internis basi albis. 



Olive, beneath pale fulvous, crest yellow ; wings black, the in- 

 ternal base of the quills white. 



Description. — This is of an intermediate size between T. Vigor si 

 and T. cristatus, but the bill is smaller and much weaker than 

 that of the last-named bird, the upper mandible also is less convex 

 above, and the margins, although innexed, are not at all sinuated ; 

 the bristles of the rictus are stronger, and extend to half the 

 length of the bill. The front and sides of the head are black ; 

 and the crown is ornamented by a half- concealed crest of straw- 

 coloured yellow feathers ; the ears are dusky black. The general 

 colour of the upper parts of the body is obscure olive ; the wings 

 are deep black ; the scapulars tinged with olive ; and the quill 

 feathers, with the exception of the two first, are all marked at the 

 base of the inner webs by a band of pure white. All the under 

 plumage is pale fulvous, tinged with olive on the flanks, and 

 verging towards white on the abdomen: the tail is black, of a 

 rounded form, and the feathers rather broad ; tarsi pale. . 



Inhabits the southern parts of Brazil. My specimen was libe- 

 rally communicated to me by Dr. Langsdorff. 



Total length 6§, bill T 6 ff , wings 3|-, tail ft£i tarsi ^. 



I recollect seeing this species, or one very nearly resembling it, 

 among the valuable zoological collections made by Dr. Such, in 

 the southern provinces of Brazil, and which have furnished mate- 

 rials for some interesting and valuable papers, communicated by 

 that gentleman to the scientific Journals. I therefore embrace 

 this opportunity of affixing his name to a native bird of that 

 country which he has so successfully explored. 



7. Tachyphonus Cristatus. 



T. niger; crisld rubrd ; mento uropygioque fulvis ; scapularibus teclricibusque 

 inlcrinribus albis. 



Black, crest red ; chin and rump fulvous ; scapular and inner 

 wing-covers white. 



