GRALLAItlA. 83 



401. Grallaria simplex. 



Grey-breasted Ant-Thkush. 



Gndlaria simjplex Salvin & Grodman, Ibis, 1S84, p. 451 (Mt. l\oi*aima); 

 Salvin, op. cit. 1885, p. 430 (Koraima, 5000 ft.) ; Sclater, Cat. E. 

 Brit. Mus. XV. p. 322, 1890 (Roraima) ; Brabourne & Chubb, B. S. 

 Amer. i. p. 218, no. 2203, 1912. 



Adult male. General colour of the upper surface chestnut- 

 brown including the crown of the head, entire back, wings, and 

 tail, darker and more blackish brown on the inner webs of the 

 flight-quills ; base of lores and short feathers surrounding the eye 

 whitisii with black bristly tips to the feathers ; throat and middle 

 of abdomen dull white ; breast and sides of body dusky grey ; 

 under tail-coverts chestnut-brown ; thighs similar ; under wing- 

 coverts chocolate-brown ; under surface of flight-quills rust-brown, 

 paler on the inner edges. 



Total length 155 mm., exposed culmen 19, wing 85, tail 43, 

 tarsus 43. 



Adult female. Similar to the adult male. Wing 78 mm. 



A young male collected in August differs from the adult in 

 being darker and almost entirely grey on the breast and abdomen 

 with the remains of a few bright rufous feathers on the latter, 

 which points to the fact that the first plumage is much brighter. 



This species is not represented in the McOonuell collection, and 

 the descriptions are taken from the types in the British Museum, 

 which were collected by the late H. Whitely on Mount lioraima 

 in Augu&t and September, 1883, at an altitude of 5000 feet. 



Breeding-season. Unknown in British Guiana. 



^V^5^ Unrecorded in British Guaina. 



K'jf/s. IJndescribed from British Guiana. 



Jiamje confined to British Guiana. Mount Roraima (^Whitely). 



IJaldls. Unrecorded. 



(1 'i 



