292 



Subfamily V. VIREONIN^ *. 



23. VIREO. 



Type. 



Vireo, VieiUot, Ois. de tAmer. Septe7itr. i. p. 83 



Q807-) V. noveboracensis. 



Vireosylvia, Bonnp. Comp. List Birds Europe and 



N. Am. (1838) V olivacea. 



PhvUonianes, Cah. Archiv f. Nature/. 1847, p. 321 (No type.) 

 Lanivireo, Baird, Bev. Am. Birds, i. p. 326 (1864) V. flavifion.?. 

 VireoueUa, Baird, Bev. Am. Birds, i. p. 326 (1864) V. gundlaclii. 



Bill much more slender than in Cyclorhis or Vireolanius, abruptly 

 curved at the end. Legs slender, lateral toes unequal. The shape 

 of the wings various. The first plumage of the young resembhng that 

 of the adult, and being destitute of spots either above or below (Sal- 

 vin). Length of wing about 2-5-3 inches. Pattern of plumage 

 very plainr the only colours being olive, yellowish, white, and 

 black, with their combinations. 



Heads of Vireo flavifrons and Vireo flavoviridis. 

 Banrje. Korth America, extending through Central and Southern 

 America to Brazil and Peru. Antilles. 



Key to the Species, 



A. Wings elongated, pointed, longer than tail ; 

 first primary extremely short, sometimes 



obsolete (Subgeneric group Vireosyl via.) 



a. Figure slender ; bill rather slender, laterally 

 compressed, straight ; feet slender. 

 «'. First primary obsolete. 



(calidris,^. 293. 

 a". Crown of head grey, bordered with a J olivaceus, p. 294. 



line of fuscous j chivi, p. 295. 



[flavoviridw, p. 295. 

 h" . Crown of head not margined with a j magister, p. 295. 



differently coloured line ) pMladelpMcus, p. 296. 



I, T-,. , • . I qilvus, p. 296. 



6'. First primary present \josephl p. 297. 



6. Figure robust; bill short and robust; feet 



rather robust (Subgeneric group LANI^^REO.) 



c' . First primary obsolete ; ocular region and 



throat yellow Jlavifrons, p. 298. 



* The characters on which the " genera " of this subfamily are based are 

 1 10 indefinite to be shortly expressed in a " Key," as has been attempted in the 

 oJier subfamilies. 



