282 BIRDS OF BRITISH GUIANA. 



the body rather paler than the npper parts, especially on the 

 abdomen, vent, and under tail-coverts, with pale shaft-lines to 

 the feathers ; axillaries and a patch on the sides of the body rich 

 chestnut ; under wing-coverts grey, with an admixture of pale 

 rufous and white ; under surface of flight-quills pale brown like 

 the lower aspect of the tail, the latter fringed with buff at the tips. 



Total length 191 mm., exposed culmen 18, wing 111, tail 82, 

 tarsus 19. 



The specimen described was collected on the Ituribisi River in 

 August 1909. 



Adult female. Differs from the adult male in having the upper 

 wing-coverts darker, the buff spots to the feathers larger, and the 

 elongated patch of ferruginous feathers tipped with black on the 

 middle of the abdomen. Wing 106 mm. 



The female described was collected on the Supenaam River in 

 1911. 



Breeding-season. Unknown in British Guiana. 



Nest, Unrecorded in British Gruiana. 



Eggs. Undescribed from British Gruiana. 



Range in British Guiana. Ituribisi Biver, Supenaam River, 

 Lower Mazaruni River, Bartica, Bonasika River, Makauria River, 

 Tiger Creek {McCorinell collection^ ; Bartica, Kamakusa ( Whitely). 



Extralimital Range. Cayenne, Eastern Brazil, Eastern Peru, 

 Eastern . Ecuador. 



Habits. Unrecorded in British Gruiana. 



Genus LIPANGUS Boie. 

 Lipangus Boie, Isis, 1828, p. 318. Type L. simplex (Licht.). 



rig. 112. — To show upper portion of tarsus, hinder aspect. 



The species on which this genus was based are somewhat large 

 for Passerine birds. The bill is depressed laterally at the base, the 



