420 



BIKJ)^ UF BHITISH GI'IANA. 



alxne and more or less mixed with white on the under surface, 

 with a line of bufl'in front and below the eye. ^Ving 62 mm. 



Breedirtij-season. Un known . 



I^est. Unrecorded. 



Kays. Undescribeil. 



Ranae. Confined to British (juiaua : Mount Koraiina. Lower 

 Mazaruni River (McCoiuiell collection) ; Mount Roraima, Merume 

 Mountains {\Vliitel>/). 



IJahiti<. Unrecorded. 



Genu^ HELIOTHRIX Boie. 

 Heliothrix Boie, Isis, 1831. ]<. o^~ . Type H. aurita (Gmel.). 



Tlie characters bv which this genus is distinguished are the 

 wedge-shaped bill, the feathering at the Vjase of the culmen, 

 the hidden nasal covers, a)id the graduated tail. 



l(<Hi L.A} 



Heliothrix aurita. 

 Fig. ^7. — To illu.strdte the wedge-sha]>ed bill and the graduated tail. 



2^h. Heliothrix aurita. 

 Black-eared Faiky. 



Tiochilus auriftfx (riin-l. Syst. Nat. i. p. 493, 1788 fCayennej ; CaVj. in 

 Schomb. Keis. Guian. iii. p. 707, 1848. 



Note. — Ocreatos (lould, 1^<4<'>. must leplace Spatlinra Gould, 

 1849, in Braljoiinie iV ( hubb's, 'Bird.-? of South America.' i. p. 1.^4. 

 no. .j.>.). 



