18 BIRDS OF BRITISH GUIANA. 



Falls Demerara River, Tio-er Creek Essequibo River, Anarica 

 River [}fcConnell collection^. 



Extralimital Range. Surinam {Penard), Venezuela and North 

 Brazil. 



Habits. Scboraburgk states (Reis. Giiian. iii. p. 687) that he 

 found this species near the coast and in the neighbourhood of 

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

 throughout the colony. 



o5S. Erionotus amazonicus. 

 ScLATER^a Amazonian Bush-Shrike. 



Thamno])liilus amazonicus Selater, P. Z. S. 1858, p. 214, pi. 139. figs. 1, 2 

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

 Grove, Camacusa, Takutu Biver) ; Brabourne & Chubl), B. S. Amer. 

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



Thamnophilus ruficollis Cab. in Schomb. Reis. Guian. iii. p. 687, 1848 ; 

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

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



Adult viale. 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 ; 

 up})er wing-coverts black edged with white; primary and secondary 

 quills blackish with white on the outer edges ; u[)per 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 05, 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- 

 coverts 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 

 tipi)ed with white, the outer tail-feathers darker and more 

 broadly tij)ped 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 f909. 



Breeding -season. Unknown in British Guiana. 

 Nest. Unrecorded in British Guiana. 



