STIOTOMTRMORNIS. 71 



fulvous pear-shaped mark at the tips ; tail similar in colour to the 

 back but the feathers darker subterminally and edged with white 

 at the tips ; upper wing-coverts black minutely tipped with 

 white on the lesser series, more broadly on the median and 

 greater series where the white is tinged, more or less, with pale 

 fulvous like the spots on the outer webs of the inner secondary- 

 quills ; outer edge of the bastard-wing white ; primary-coverts 

 uniform black ; inner webs of the primary and secondary quills 

 blackish with pale edges, the outer margins like the back but 

 darker towards the base ; the feathers on the top of the head have 

 dark margins which impart a squamated appearance ; base of the 

 forehead and hinder face dark slate-grey; throat black; fore-neck 

 and breast white with black tips to the feathers on the latter, the 

 black increasing in extent on the sides of the breast ; abdomen, 

 flanks, and under tail-coverts pale fulvous ; under wing-coverts 

 whitish, the outer margin black with minute white spots, the 

 greater series brown like the quill-lining; lower aspect of tail 

 brown with a dark subterminal band and whitish at the tip. 



Total length 111 mm., exposed ciilmen 15, wing 61, tail 38, 

 tarsus 20. 



The male described was collected on the Ituribisi River in 

 Februaryl907. 



Adult female. Similar to the adult male on the upper surface 

 but differs below in the absence of the black on the throat, which 

 is whitish, and the white on the fore-neck and breast, which is 

 fulvous like the remainder of the under parts. Wing 58 mm. 



The female described was collected on the Kamakabra River 

 in 1911. 



Breeding-season. Unknown in British Guiana. 



Nest. Unrecorded in British Guiaha. 



Eggs. Undescribed from British Guiana. 



Range in British Guiana. Ituribisi River, Supenaam River, 

 Bartica, Kamakabra River, Great Falls Demerara River (McCon- 

 nell collection). 



Extralimital Range. Surinam (Penard), North Brazil. 



Habits. Unrecorded in British Guiana. 



