14^ BIRDS OF BRITISH GUIANA. 



This genus is easily distinguished by the broad and flattened" 

 bill, the width being about equal to the length of the exposed 

 culmen. The wing is rounded, the third and fourth primaries 

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

 that of the eighth. The tail is almost square at the tip and about 

 three-fourths the length of the wing. The hind toe and claw are 

 almost equal in length to that of the middle toe and claw. Colo- 

 ration : male and female similar. 



445. Craspedoprion guianensis. 



BKiTisn Guiana Flat-bill. 



Rhynchocyclus olivaceus guianensis McConnell, Bull. Brit. Orn. Club, 



xxvii. p. 106, 1911 (Abary Eiver). 

 Craspedoprion guiananensis Brabourne & Chubb, B. S. Amer. i. p. 270, 



no. 2754, 1912. 



Adult [type of the species'). Head, back, and upper wing- 

 coverts very dark green with pale buff edgings to the outer greater 

 upper wing-coverts and innermost secondary quills; bastard-wing 

 and primary-coverts brown ; primary and secondary quills dark 

 brown on the inner webs and edged with buffy-white, some of the 

 outer webs fringed with green; tail-feathers pale brown; sides of 

 face, throat, breast pale slate-grey which extends more or less 

 along the sides of the body ; abdomen and under tail-coverts 

 sulphur- yellow ; under wing-coverts white ; quills below brown 

 with buffy-white inner edges ; lower aspect of tail pale brown. 



Total length 137 ram., exposed culmen 13, wing 72, tail 57, 

 tarsus. 17. 



The bird from which the description is taken was collected on 

 the Abary River in September 1906. 



breeding-season. Unknown in Britisb Guiana. 



Nek. Unrecorded in British Guiana. 



Eggs. Undescribed from British Guiana. 



Range in British Guiana. Ituribisi River, Kamakabra River, 

 Makauria River, Anarica River, Abary River {McConnell col- 

 lection). 



Extralimital Range. North Brazil, Venezuela. 



Habits. Unrecorded in British Guiana. 



