136 GEJTEBA AND SPECIES. 



In the latter species the forehead is orna- 

 mented with a round spot of beautiful metallic 

 violet; the back of the head, the neck, and upper 

 part of the back are bronzy-green, passing into 

 purer green on the back and shoulders. The 

 lower part of the back and upper tail-coverts are 

 dull greyish-blue; the throat and abdomen black, 

 with green reflexions; under tail-coverts deep 

 violet blue; wings purplish brown; tail black, 

 slightly glossed with green; bill black; feet 

 brown. 



Total length, 4$; bill, H; tail, If inch. 



Locality : Peru. In Gould's cabinet. 



This beautiful bird is precisely of the same 

 form in every respect as the Louise, but differs 

 most remarkably in the colour of its plumage, 

 the forehead being violet instead of green, and 

 the under surface black instead of golden-green. 



We now pass to a genus containing species 

 remarkable for beauty. 



Genus PETASOPHOEA, G. E. Gray (Heliothrix, 

 Boie : Rhamphodon, Lesson ; Colibri, Spix. and, 

 in part, the Prince of Canino). 



The beak in this genus is long and slender, 

 pointed, straight or very slightly arched, and in 

 one species at least is very finely serrated upon 

 the margins of the mandibles (Tr. petasophorus). 

 The ear-coverts consist of large scale-like fea- 

 thers, standing out from the sides of the neck, 

 glittering with metallic violet-blue. The pre- 

 vailing general tint is green. The tail is square, 



