36 BIRDS OF BRITISH GUIANA. 



black fringed with white ; under tail-coverts like the abdomen but 

 broadly margined with white. 



Total length 86 mm., exposed culmen 15, wing 57, tail 29, 

 tarsus 17. 



Adult female. Upper surface, including the crown of the head, 

 entire back, and tail, mouse-grey ; outer aspect of wing tinged with 

 rufous ; inner webs of flight-quills dark brown with bufFy-white 

 edges ; lores, a line over the eye extending on to the sides of the 

 crown, and sides of the face grey; throat whitish; breast, abdo- 

 men, sides of the body, under tail-coverts, under wing-coverts, 

 and inner edges of the flight-quills below bufl". Wing 53 mm. 



The female described was collected at Bartica by H. Whitely on 

 tlie 1st November, 1879 — now in the British Museum, Salvin 

 Godman collection. 



Breeding-season. Unknown in British Guiana. 



JYest. Unrecorded in British Guiana. 



Eggs. Undescribed from British Guiana. 



Range in British Guiana. Supenaam River, Bartica, Berbice, 

 Arwye Creek, Tiger Creek {McConnell collection') ; Bartica, 

 Kamakusa, Mount Roraima (Whitely). 



Extralimital Range. Surinam (Penard), Cayenne {Sclater 8f 

 Salvin) . 



Habits. Unrecorded in British Guiana. 



371. Poliolsema guttata. 



RUFOUS-BBLLIED AnT-BIKD. 



Myrmotjiera guttata Vieill. Gal. Ois. i. p. 2,51, pi. 155, 1825 (Cayenne). 



Jthopoterpe guttata Cab. in Schomb. Eeis. Guian. iii. p. 688, 1848. 



Myrmotlierula guttata Salvin, Ibis, 1885, p. 425 (Camacusa, Bartica 

 Grove); Sclater, Cat. B. Brit. Mus. xv. p. 232, 1890 (Bartica 

 Grove, Roraima, Camacusa) ; Brabourne & Chubb, B. S. Amer. i. 

 p. 197, no. 1967, 1912. 



Adult male. Crown of head, hind-neck, upper back, sides of the 



face, throat, and breast dark slate-grey, darker on the head and 



paler on the throat ; the feathers of the back are white at the 



base, subapically marked with black and rust-brown at the tips ; 



rump rust-brown with rufous tips to the feathers ; lesser upper 



wing-coverts greyish brown; median and greater wing-coverts 



black tipped with fulvous ; bastard-wing dark brown, the outer 



margins of the feathers fulvous ; primary coverts and quills dark 



brown, with rust-brown on the edges of the outer webs of the 



