SAKESPHOEUS. 15 



wing-coverts black tipped, or edged with white ; quills blackish 

 brown, with pale outer welis to the primaries and white edgings 

 to the innermost secondaries ; edges to the inner webs of both 

 primary and secondary quills white ; upper tail-coverts and tail 

 black tipped with white, with a white spot on the outer web o£ 

 the outermost pair o£ tail-feathers and white edges to some of the 

 middle feathers ; abdomen, sides of breast, sides of body, and 

 under tail-coverts pale slate-grey; under wing-coverts white. 

 Total length 143 mm., culmen 20, wing 76, tail 61, tarsus 25. 

 Adult female. DitTers from the male in having the crown of 

 thi> head chestnut, the back rut'ous-brown, and the breast ochreous 

 with black shaft-lines to the feathers. Wing 72 mm. 



Immature male. Very similar in colour to the female, but dis- 

 tinguished partly by its black crest and also by the approach of 

 black feathers on the throat. 



The male and female birds described were collected at Bartica 

 in 1911, and the immature male on the Abary River, July 1906. 

 Breeding-season. Unknown in British Gruiana. 

 Nest. Unrecorded in British Guiana. 

 Eggs. Undescribed from British Gruiana. 



Range in British Guiana. Upper Takutu Mountains, Ituribisi 

 River, Supenaam River, Bartica, Bonasika River, Abary River, 

 Anarica River {McConnell collection); Quonga, Annai, Rupunini 

 River {Whitely). 



Extraliinital Range. Cayenne {Linni), Trinidad, Venezuela. 

 Habits. Schomburgk states (Reis. Guian. iii. p. 687) that this 

 bird was fond of the Avicennien-bush near the coast, and that its 

 life and habits are similar to those of Thamnophilus major, p. 10. 

 Latham, in his ' General Synopsis,' ii. pt. i. p. 83, writes : — 

 " These inhabit Cayenne, where they breed several times in a 

 year, and lay three eggs at a time. Their cry is like that of a 

 young chicken. Feeds on ants." 



