Order II. PASSERES. Tribe TIL Pentirostres, Family IV. Ampelimi, 



The third Subfamily, 



AMPELINiE, or Chatterers, 



have the Bill more or less long, with the gape very wide, the culmen rather depressed and curved to the 

 tip, which is emarginated ; the sides compressed towards the apex, the gonys long and ascending ; the 

 Nostrils lateral, mostly exposed, and somewhat oval ; the Wings moderate, with the second to the fourth 

 quills generally the longest ; the Tail generally short and even ; the Tarsi mostly short, and the Toes 

 long, the outer toe slightly united at the base. 



Phibalura Vieill* 



Bill rather short, and the base very broad, with the culmen gradually curved, and the sides com- 

 pressed to the tip, which is emarginated ; the gonys short and ascending ; the nostrils lateral and placed 

 in a broad groove, with the opening rounded, and partly concealed by the frontal plumes. Wings long, 

 with the first quill nearly as long as the second and third, which are equal and longest. Tail lengthened 

 and much forked. Tarsi shorter than the middle toe, strong and broadly scutellated. Toes long and 

 strong, with the outer toe longer than the inner, and united at its base, the hind toe strong and long ; 

 the claws strong, compressed, and curved. 



The type of this genus is found in the tropical portions of America. 



P. flavirostris Vieill. Gal. des Ois. t. 74. — Phibalura cristata Swains. Zool. Illustr. pi. 31., Temm. PI. col. 118. ; Pipra chrysopogon 

 Wacjl. ; Pipra forficata Thunb. 



Tersa Vieill.f 



Bill moderate, rather depressed, and the base extremely broad, with the culmen gradually curved, and 

 the sides suddenly compressed for two-thirds of their length to the tip, which is emarginated ; the gonys 

 moderate, and ascending ; the nostrils lateral, with the opening rounded and partly concealed. Wings 

 moderate, with the first quill nearly as long as the second, which is rather longer than the third. Tail 



* Established by Vieillot in 1816 {Analyse, #e. p. 31.). M. Gloger changed the name to Chelidis in 1827- 



| Vieillot established this genus in 1816 {Analyse, fyc. p. 38.) : in 1825 the same author changed the name to Tersina. 



