380 BIRDS OF BRITISH GUIANA. 



253. Threnetes leucurus. 



White-tailed Barbed-throat. 



Troehihis lenciirus Linn. Svst. Nat. 12th ed. i. p. 190, 17G6 (Snrlnara). 

 Threnetes levcurus Gould, Monogr. Troch. i. pi. 13, 1852 (Demerara) ; 



8alvin, Cat. B. Brit. Mus. xvi. p. 264, 1S92 (Demerara) ; Bra bourne 



«fc Chubb, B. S. Amer. i. p. 105, no. 998, 1912. 



Adult. Head, back, upper wing-coverts, and central tail-feathers 

 dull green with pale edgings to the feathers; flight-quills brown 

 minutely edged with white at the tips; outer tail-feathers more or 

 less white ; chin and sides of face blackish ; throat pale rufous, 

 rather duller on the cheeks ; breast dusky, with a wash of green 

 which is increased on the sides of the neck ; abdomen dirty white ; 

 under tail-coverts green with pale margins to the feathers. 



Total length 111 mm., culmen 2(j, wing 61, tail 136- 



The bird from which the description is taken was collected on 

 the Ituribisi Kiver. 



There are no sexed birds of this species in the McConnell 

 collection nor in the series at the British Museum. We can only 

 suggest, therefore, that the male and female are probably alike in 

 plumage. 



Breeding- Reason. Unknown in British Guiana. 



Nest. Unrecorded in British Guiana. 



F^ggs. Undofecribed from British Guiana. 



Range in British Guiana. Ituribisi River, Bonasika River, 

 Lower Mazaruni River (McConnell collection) ; Demerara [Govld 

 collection in the British Museum). 



Kxtralimital Range. Surinam (Linne), North Brazil. 



Habits. Unrecorded in British Guiana. 



Genus GLAUCIS Boie. 



Glaucis Boie, Isis, 1831, p. 545. Type G. hirsuta (Gmel.). 



This genus is distinguished by the arched bill and rounded tail, 

 the feathers being somewhat pointed. 



254. Glaucis hirsuta. 



Hairy Hermit. 



Trochilus liirsiitus Gmel. Syst. Nat. i. p. 490, 1788 (Brazil). 

 Troehihis hraziliensis Cab. in Schomb. Reis. Guian. iii. p. 708, 1848. 

 Troehihis dominiciis (nee Linn.), Cab. torn. cit. p. 70S, 



