358 Mr. P. L. Sclater on the Fissirostral family Bucconidse, 



burgk says it is one of the rare birds of British Guiana, and he 

 met with only a few individuals on the Canuku mountains. It 

 seems more common on the Amazon, where many specimens have 

 been lately collected by Messrs. Hawxwell and Wallace. Dr. 

 Tschudi found it in Cis-andean Peru, in the provinces borderinpj 

 on Brazil. The feathers of the back and wings, except the pri- 

 maries, are narrowly edged with white, the rectrices slightly 

 tipped with white. My measurements are taken from a fall- 

 sized individual. Younger birds are rather smaller, the bill 

 considerably inferior in size, and the white front much narrower. 

 The breast baud is broader in some examples than in others. 



3. Bucco SwAiNsoNi, G. R. Gray. 



Tamatia macrorhynchus, Sw. Zool. 111. (1821-22) t. 99. 



Bucco Swainsoni, Gray's Gen. p. 74 ; Gray's List of B. M. p. 47. 



Capita Swainsoni, Bp. Consp. p. 146. 



B. supra niger, fronte et vitta subnuchali albis : subtus albus ; 



vitta pectorali nigra ; abdomine fulvo : rostro et pedibus 



nigris. 

 Long, tota 9"0; alse 4*1 ; caudse 3*0. 

 Hab. in Brasil. Merid. 



This South Brazilian representative of the preceding species 

 was figured by Mr. Swainson in his * Zoological Illustrations ' 

 under the name of its prototype. To Mr. Gray belongs the credit 

 of distinguishing it therefrom and naming it after its first 

 describer. It may be easily recognized by its smaller size, 

 weaker bill and fuilvous vent. My specimens are from Rio de 

 Janeiro, I believe. The bird is to be found in most collections, 

 more commonly even than the true macrorhynchus. 



4. Bucco PECTORALis, G. R. Gray. 



Bucco pectoralis, Gray's Gen. p. 74. pi. 26 ; Gray's List of B. M. p. 4L 

 Capita pectoralis, Bp. Consp. p. 146. 



B. niger seneo tinctus ; regione auriculari et nucha late albis : 

 subtus albus vitta pectorali latissima nigra; ventre medio 

 crissoque albis, lateribus nigrescentibus : rostro pedibusque 

 nigris. 



Long, tota 8-0 ; alse 3*8 ; caudse 3*0. 



Hab. in America Meridionali. 



The nuchal collar extending from eye to eye and the broad 

 pectoral band render this species easily recognizable. The 

 British Museum type-specimen is unique, as far as my experience 

 goes. 



