18 BIRDS OF BRITISH GUIANA. 



Falls Demerara River, Tiger Creek Essequibo River, Anarica 

 River [McConnell collection). 



Extralimital Range. Surinam (Penar^), Venezuela and North 

 Brazil. 



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

 found this species near the cosist and in the neighbourhood o£ 

 Mount Roraima, and it appeared to hiin to be generally distributed 

 throughout the colony. 



358. Erionotus amazonicus. 



Sclater's Amazonian Bush-Shrike. 



ThamnopTiilus amazonicus Sclater, P. Z. S. 1858, p. 214, pi. 139. figs. 1, 2 

 (East Peru) ; id. Cat. B. Brit. Mus. xv. p. 199, 1890 (Bartica 

 Grove, Camacusa, Takutu River) ; Brabourne & Chubb, B. S. Amer. 

 i. p. 189, no. 1889, 1912. 



Thamnophilus ruficollis Cab. in Schomb. Eeis. Gruian. iii. p. 687, 1848 ; 

 Salvin, Ibis, 1885, p. 423 (Camacusa, Bartica Grove) ; Gates, Cat. 

 Birds' Eggs Brit. Mus. iii. p. 167, pi. iii. fig. 2, 1903. 



Adult male. General colour above and below^ slate-grey, some- 

 what paler on the under surface, the feathers on the head and 

 upper back centred with black, the latter having white bases ; 

 upper wing-coverts black edged with white; primary and secondary 

 quills blackish with white on the outer edges ; upper tail-coverts 

 and tail-feathers black tipped with white; inner edges of primary 

 and secondary quills also white. 



Total length 132 mm., exposed culmen 15, wing 65, tail 54, 

 tarsus 21. 



The bird described was collected on the Kamakabra River, 1911. 



Adult female. Head and entire under surface rufous, brighter 

 on the head and paler below ; back olive-brown with slate-colour 

 bases to the feathers and concealed white spots; upper wing- 

 covei'ts blackish with white edges ; primary and secondary quills 

 dark brown, with pale edges on the outer and inner webs; upper 

 tail-coverts and middle tail-feathers rufous-brown, the former 

 tipped with white, the outer tail-feathers darker and more 

 broadly ' tipped on the outermost, which has a white spot on 

 the outer web ; under wing-coverts pale buff. Wing 65 mm. 



The female described was collected on the Ituribisi River in 

 August 1 909. 



Breeding -season. Unknown in British Guiana. 

 Nest, Unrecorded in British Guiana. 



