226 BIRDS OF BRITISH GUIANA. 



The specimen from which the description is taken was collected 

 on the Abary River in July 1906. 



Breeding-season. Unknown in British Guiana. 



Nest. Unrecorded in British Gruiana. 



Eggs. Undescribed from British Guiana. 



Range in British Guiana. Abary River (^Mc Connell collection) . 



Extralimital Range. Venezuela, Colombia, Ecuador, Peru, 

 Bolivia. 



Habits. Unrecorded in British Guiana. 



Note. — I have not found any trace of the following species in 

 British Guiana : — Muscicapa fusca Boddaert, Tabl. PI. Enl. 

 d'Hist. Nat. p. 34, 1783, founded on Gohemouche hrun, PL Enl. v. 

 pi. 574. fig. 1. " Plancliesia fusca (Bodd.)," Brabourne & 

 Chubb, B. S. Amer. i.p. 302, no. 3078, 1912. 



Genus MYIARCHUS Cab. 



Myiarchus Cabanis in Tschudi's Faun. Peru., Aves, p. 152, 1845. Type 

 M. ferox (Gmel.). 



The members of this genus are rather large birds with some- 

 •vvhat flattened bills, which have a keeled culminal ridge. The 

 width of the bill at the base is about half the length of the exposed 

 culmen, the upper mandible is sharply hooked at the tip, and the 

 base is furnished with rictal bristles, though not particularly 

 numerous. The wing is rounded, the third, fourth, and fifth 

 primaries longest and equal, the second about equal to the sixth 

 and the first about equal to the eighth. The tail is nearly equal 



