214 



BIRDS OF BRITISH GUIANA. 



Adult female. Simikr to the adult male. Wing 108 mm. 



This species is not represented in the McConnell collection, and 

 the above descriptions are taken from specimens in the British 

 Museum collected by the late Henry Whitely on Mount Roraima 

 and Twek-quay Mountains — Salvin-Godman collection. 



Breeding-season. Unknown in British Guiana. 



Nest. Unrecorded in British Guiana. 



Eggs. Undescribed from British Guiana. 



Range in British Guiana. Mount Uoraima and Twek-quay 

 Mountains ( Whitely). 



E.L'tralimital Range. North Brazil. 



llahits. Unrecorded in British Guiana. 



Genus MYIOBIUS Gray. 



Myiolnus Gray, List Glmi. Birds, first edition, p. 30, 18-40. Type M. lar- 

 iat us (Guiel.). 



Fig. 88. — Myiohius harhattis. 



The members of this genus are small birds with flat bills, the 

 width at the basal portion being about half the length of the exposed 

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

 base is furnished with well-developed rictal bristles. The wing 

 is rounded, the third, fourth, and fifth primaries longest and equal, 

 the second shorter than the fifth but much longer than the sixth. 

 The tail is proportionately long, being nearly six-sevenths the 

 length of wing, and is square at the tip. The tarsus is about one- 

 fourth longer than the exposed culmen, and the hind toe and claw 

 are about equal in length to the middle toe and claw. Colo- 

 ration : male and female similar. 



