Mr. Swainson on several new groups in Ornilhologt/. 351 



The peculiarity in the construction of the wing separates this 

 group from all those known to inhabit the old world. In cases 

 like the present, where such peculiarities are found to indicate, 

 with certainty, the geographic distribution of groups, they aflbrd 

 the most important and unerring guides to a natural arrangement. 

 This genus makes r. near approach to Pifi/lus on one side, and 

 to Pyrrhula on the other. It represents Coccothraustes in the 

 new world, and corresponds to another form peculiar to Africa. 

 It may here be observed that generic characters drawn from the 

 comparative size or strength of the bill, unsupported by other 

 indications, afford no clue to guide the Ornithologist towards a 

 right knowledge of this interesting tribe. And it is probably 

 owing to this mistaken notion, that the Fringillce and Loxice of 

 Linnaeus remain to this day nearly in the same state, in which they 

 were left by those who have been considered his disciples. 



-TIARIS. 



Rostrum crassum, elongato-conicum^ acuimn, siib-emarginatiim / 



tomio sinuato. 

 Alte sub-breves, rotundata ; remigibus ^dd^ 3tia^ 4ta^ et bt^fere 



aquulibus, lojigissimis. 

 Cauda rotundata. 



Bill thick, conic, acute, slightly notched. Wings rather short, 

 rounded ; the second, third, fourth, and fifth quills nearly 

 equal and longest. Tail rounded. 



Type. Fringilla ornata. Temm., PI. col. No. 208. 



Several interesting Birds, recently received from Mexico and 

 Brazil, render it necessary to form a genus for their reception ; 

 to which I consider Tach. fringilloides and rubesce7is, Sw. will 

 more properly belong. 



Familij Sturnida. 

 Sub-familij Icterinu. Vigors. 



DOLICHONYX. 



Rostrum breve, conicum, acufum, immarginatum. 



AU lofiga, attenuata; remigibus 1»«« ct 2rf</ aqualibus, lo?igissimis. 



