MYRMOPAGIS. 31 



edges at the tips of the feathers ; sides of the body, axillaries, 

 under wing-coverts, and edge of wing silky- white ; throat, fore- 

 neck, middle of breast and abdomen black; under tail-coverts also 

 black fringed with grey. 



Total length 99 mm., exposed culmen 15, wing 52, tail 36, 

 tarsus 15. 



The specimen from which the description is taken was collected 

 on the Ituribisi River in February 1907. 



Adult female. Upper parts fulvous-brown including the head, 

 back, and sides of the breast, becoming rufous on the wings 

 ' and tail ; inner webs of the primary and secondary quills dark 

 brown,'with cinnamon-buff edgings; throat whitish slightly tinged 

 with buff ; breast and abdomen ochreous-buff, becoming deeper in 

 colour on the under tail-coverts ; flanks white ; under wing-coverts 

 and inner edges of the quills below cinnamon-buff. Wing 

 49 mm. 



The female described was collected on the Makauria River. 



breeding-season. Unknown in British Guianr. 



If^est. Unrecorded in British Guiana. 



■Eggs. Undescribed from British Guiana. 



Range in British Guiana. Ituribisi River, Supenaam River, 

 Bartica, Bonasika River, Makauria River, Abary River, Berbice 

 River, Arwye Creek, Great Falls Demerara River, Arawai River, 

 Tiger Creek Essequibo River, Anarica River (McConnell collec- 

 tion); Bartica, Kamakusa, Merume Mts., Takutu River ( Whitely); 

 Hoorie River {Beehe). 



Extralimital Range. Surinam {Fenard), Cayenne (Vieillot), 

 Trinidad, Venezuela, North Brazil. 



Habits. Schomburgk states (Reis. Guian. iii. p. 688) that this 

 bird lives in the low brush on the outskirts of the woods, in the 

 fields cultivated by the natives, and in the neighbourhood of rivers. 



Mr. W. Beebe, in ' Our Search for a Wilderness,' p. 194, gives 

 the following note : — " One, a White-shouldered Pygmy Ant-bird, 

 now flits ahead of us, tiny as a Wren, slate-colored, with white 

 dots on the lesser coverts of the wings and a dotted bar across 

 the wings. The flanks and under wings are white and although 

 ordinarily concealed, yet the little fellow flirts his wings every 

 second, thus flashing out the color, and making himself most con- 

 spicuous. His call-note is low and inarticulate, but he occasionally 

 lisps a pleasing little song : chu ! chu ! chuwee !" 



