On the genus Icterus ofM. Brisson, 189 



Carouge de I'isle St. Thomas. PI. Enl. 535. f. 2. Yellow- 

 winged Pye. Edw. t. 322. 



The remaining species of M. Daudin's Ideri, which M. Cuvier 

 has characterized as his genus Xanthornus, although closely 

 allied to the group which we have quitted, are separated from it 

 by their straighter bills. The margin of the mandibles also is angu- 

 lated near the gape, while in the genuine Icteri it forms an unin- 

 terrupted curve. Their tails again are less graduated than those 

 of the Icteri, and in some instances may be observed to be nearly 

 equal. The genus appears to be thus characterized. 



Xanthornus. Cuv. 



Rostrum subgracile, rectum, acutissimum : mandibularum mar- 

 gine basin versus angulum formante : naribus ovalibus membrano 

 partim tectis. 



jilce subrotundatae : remige Imk et 6taj 2da et 5t&, 3tia et 4** 

 fere sequalibus, his longissimis. 



Cauda subaequalis. 



Pedes subgraciles. 



In this genus may be included the following well-known spe- 

 cies, which appear to exhibit the typical characters of the group. 



Oriolus Mexicanus. Linn. Syst. Vol. I. p. 162. sp. 13. Oriolus 

 Xanthornus. Gmel. Syst. Vol. l.p. 391. sp. 13. Le Carouge 

 de Mexique. Briss. Tom. II. p. 118. sp. 23. pi. 12. f. 2. 

 PL Enl. 5. f. 1. Lesser Bonana Bird. Edw. i. 243. Shaw. 

 Nat. Misc. pi. 243. 



Oriolus icterocephalus. Linn. Syst. Vol. I. p. 163. sp. 16. 

 Le Carouge a teste jaune de Cayenne. Briss. Tom. II. p. 124. 

 sp. 27. pi. 12. f. 4. Carouge de Cayenne. Pi. Enl. 343. 

 Yellow-headed Starling. Edw. t. 323. 



Oriolus Baltimore. Linn. Syst. Vol. I. p. 162. sp. 10. Le 

 Baltimore. Briss. Tom. II. p. 109. sp. 19. pi. 12. f. 1. 

 PI. Enl. 506. f. 1. Baltimore Bird. Arct. Zool. Vol. II. 



