180 GENERA AND SPECIES. 



Locality : Gruiana, along the Biver Essequibo 

 and its tributaries. 



Trochilus (Thalurania) Firidipectus, Gould, 

 1848. 



In this species all the upper surface is bronzy- 

 green, passing into bright grass green on the 

 lower part of the back ; upper and under tail- 

 coverts and tail steel bluish black ; throat and 

 chest resplendent grass green ; abdomen bright 

 blue ; tarsi clothed with feathers ; bill black. 



Total length, 4 inches ; bill, 1 ; tail, If. 



Locality : the Columbian Andes- In Grould's 

 cabinet. 



This species is nearly allied to Tr. nigrofasci' 

 atus. To the present genus belongs the Blue- 

 fronted Humming-bird (Trochilus glaucopis; Tr. 

 frontalis, Latham) , described in the Naturalist's 

 Lib. Ornith. vol. i. p. 86. It is a native of 

 Brazil. In Grould's cabinet. 



Trochilus (Thalarania) Schreibersi, Lodd. 



In the adult male the beak is black, stout, 

 and slightly arched at its extremity ; the head 

 and all the upper parts of the body of a glossy 

 golden green ; from the commissure of the beak 

 a narrow line of yellow feathers is prolonged ; 

 the throat is clothed with black silky feathers, 

 passing into brilliant lustrous violet on the fore- 

 part of the neck. Feathers of the chest scale- 

 like and of a brilliant green ; abdomen deep 

 golden green ; under tail-coverts black, with 

 green reflexions ; wings falciform, and of a grey- 



