306 FORMICAEIIDiE. 



f, 0- 6 2 ^^- Carimaug River, Brit. Guiana Salvin-Godman Coll. 



sk. ( Wldtely). 



h. cJ \i'- ; ». $ Cainacusa,Brit. Guiaua ( Whitely). Salviu-Godman Coll. 



ad. sk. 



/. cJad.sk. Camacusa,Brit.Guiaua( W7i/<e/?/). Sclater Coll. 



k. Jad.sk. Takut 11 R., Brit. Guiana (TT^/»V4/)- Salvin-Godman Coll. 



I. (S ad. sk. C-ayenne. Salvin-Godman Coll. 



m. Ad. sk. Cayenne. Purchased. 



n. Ad.sk. Para, Lower Amazons ( W7f/toce) . Sclater Coll. 



7. Formicarius rufipectus. 



Formicarius rufipectus, Salr. P. Z. S. 1866, p. 7", pi. viii., et 1867, 

 p. 145 (Veragua) ; Scl. ct Salv. Nomencl. p. 75. 



Above dark brown ; rump and cap tinged with rufous ; lores and 

 tbroat black; breast, middle of belly, and crissum chestnut-red; 

 lower belly and flanks dusky ; bill black ; feet brown : whole length 

 7 inches, wing 3"4, tail 2*2. Female similar. 



Hah. Yeragua and Ecuador. 



The chestnut breast at once distinguishes this well-marked species. 



a. 5 ad. ; h. Ad. sk. Veragua {Arce). Salvin-Godman Coll. 



(Types of the species.) 

 c. Ad.sk. Baiisa, Ecuador (5«c/.Ztj/). Salvin-Godman Coll. 



Subfamily III. GEALLARIINtE. 



The elongated tarsi and short tail render this section of the 

 American Ant-Thrushes easily recognizable. 



The GraUariiuie are distributed all over the wooded districts of 

 the Neotropical Ecgion from Southern Mexico to Bolivia and South 

 Brazil, but are most numerous in the Andean ranges of Colombia, 

 Ecuador, and Peru, where they are represented by many local 

 species. 



Key to the Genera. 



A . Tail moderate, longer than tarsus 29. Chamjeza, p. 306. 



B. Tail short, shorter than tarsus. 



a. Bill broad, depressed 30. Pittasoma, p. 309. 



Ij. Bill elevated, compressed. 



« . Flanlv-feathers elongated 31. Thamnochabis, p. 310. 



b'. Flank-feathers normal. 



( Larger, stronger 32. Grallabia, p. 311. 



I Smaller, feebler .33. Grallaricula, p. 325. 



29. CHA]V[.ffiZA. 



Type. 

 Chamseza, T'if/. Zool. Journ. ii. p. .395 (1825) C. brevicauda. 



This genus is spread over Colombia, Guiana, Amazonia, and 

 Brazil, and embraces species with a larger and somewhat rounded 

 tail, and with the tarsi not quite so much lengthened as in Orallaria. 



