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386 



REVIEW OF AMEUICAN BIRDS. 



frART r. 



id 



,.£■». 



Head above nearly pnre ash. Second 



quill shorter than ll>th . . yuianensid.i 

 Head above washed with ochracpous. 



Secoud quill longer than 10th. Sisae ^ 



larger ...... V'.ridis. ,^ 



,y Superciliary rufous reaching only to eyo. 



■j : Lower mandible weak ; flesa color. 



,..j, ,, , :. , .. Head above strongly washed with 



ochraceouB ..... ochrocephaia. 



^, B. Vertex and nape olive green, like the back ; cheeks and 

 , jugular band, with sides of breast, yellowish, or olive 



green. Legs fleah color ? Lower mandible dusky. ^ 



^ .^ [ ,, Forehead chestnut brown, this color extending back- 



. ■ , ward to the nape as a superciliary band. Cheeks 



. ; and jugulum yellowish. Upper mandible pale virenticeps. 



Forehead plumbeous, with a dark chestnut band 



from nostrils to eye only. Cheeks and jugulum i 



' ' olivaceous. Upper mandible black . n'tgrlroHrh. 



Of the species described, C. suhjlavescemt and C. viridit are those which 

 have least strongly marked distinctive characters. 



In examining the preceding analytical arrangement of the species 

 of C'clorhis some interesting geographical considerations present 

 themsoVes. The most northern species (C Jlaviventris) exhibits 

 most ycilow beneath, this diminishing progressively in more southern 

 species, as G. subjlavescens (Costa Rica), and C. Jiavipedus 

 (northern part of South America). All these more northern species 

 have pale-colored legs, while those of Eastern South America have 

 dusky legs, and like those just mentioned have the vertex and nape, 

 with whole cheeks, more or less ash, in decided contrast to the 

 back. The two Andeiin, on the contrary, have these parts like the 

 back. All the species, as a rule, have the under mandible plumbeous 

 black at the base, caused by the deposit of a black pigment on the 

 bone ; this is only exceptionally absent except in ochrocephaia, 

 where it seems never to occur. In all, the upper mandible is pale 

 in the dried skin ; said sometimes to be red in life ; in nigriroslm 

 only is it black. The iris is said in most species to be either red or 

 yellowish. 



Cyclorliis flavirentris. 



Cyclaris Jlaviventris, Lafr. Rev. Zool. 1842, 133 (Santa Cruz, Mex.).— 

 Cydorisfl. Bon. Consp. 1850, 320. — CyclorhisJl. Sclateb, P. Z. S. 

 1856,99; 1858,448; 1859, 363 (Jalapa) ; 1864,173 (City of Mexico). 



' Specimens from Ceara, Bra::") fperhaps autumnal), have yellow extend- 

 ing over the breast, much as in Jlavipectus, but witii dusky legs, the vertex 

 'iuged with oohraceous. 



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