ATTILA. 135 



5. Attila cinnamomeus. 



Attila cinnamomem, Lawr. Ann. Lye. N. Y. x. p. 8 ' ; Mem. Bost. Soc. N. H. ii. p. 285 ^. 



A. citreopygio similis, sed supra miilto pallidior et magis einnamomeus ; Cauda pallide oinnamomea, uropygio 

 quoque pallidiore. (Desor. maris ex Santiago Tepic, Mexico. Mus. nostr.) 



Ilab. Mexico, Santiago Terr, de Tepic {W. JB. Richardson), Beltran, Hacienda de San 

 Marcos and Tonila in Jalisco, Santiago in Colima {Lloyd), Omilteme, Amula, and 

 Eincon in Guerrero [Mrs. H. H. Smith), Juchatengo and Sola in Oaxaca {M. 

 Trujillo). 



This is a western form of Attila, extending from the territory of Tepic to Oaxaca. 

 Generally speaking it is of a more cinnamon tint on the upper surface, and the tail is 

 of a brighter cinnamon than in any of the allied forms. The under surface as far as 

 the abdomen is usually pale grey with dark streaks, and few specimens have any tinge 

 of yellow. 



6. Attila hypoxanthus. 



Prsecedentibus similis, sed subtus undique sulphureo sufEusus ; uropygio sicut in A. cozumelcB et A. citreopygio ; 

 Cauda fere ut in A. cinnamomeo. (Descr. exempl. ex Vera Paz, Guatemala. Mus. nostr.) 



Hab. Mexico, Venta de Pelegrino in Guerrero (Mrs. IT. H. Smith) ; Guatemala, Vera 

 Paz {0. S. 8r F. D. G.). 



The two birds we here separate appear to differ so much from the other forms that 

 we are strongly inclined to consider them distinct. None of the others have the yellow 

 of the underparts spread over the whole surface, all of them having more or less white 

 on the abdomen, and grey tints usually prevail over the throat and breast. Though 

 we separate these birds under a distinct name, we confess that the distribution of this 

 and the allied forms is difficult to understand : that two forms should coexist in the 

 same area is not what we should expect. If, on the other hand, these two birds are 

 only extreme forms of the prevalent local race of the area in which they were found, 

 one of them would belong to A. cinnamomeus and the other to A. citreopygivs, the 

 two individuals being practically inseparable. 



The whole question of the separation of the various forms of Attila is, as we have 

 already said, so complicated that no certain decision can at present be arrived at. In 

 separating A. hypoxanthus the problem seems to be a little clearer, but we should not 

 be surprised if the whole group had to be entirely recast. 



Subfam. COTINGINJE. 



This subfamily contains some of the most highly coloured birds of the family 

 Cotingidae, the members of the genus Cotinga being amongst the most beautiful of 

 South-American birds. 



The development of the rictal bristles has been used as a character by which to 



