54 Genera of Humming Birds. 



Habitat. — Dominica, Sainte-Croix, Montserrat, Nevis and 

 Martinica. 



Male. — Forehead and crown mettallic golden-green turning 

 into grass-greenon elongated feathers of crest. Upperside bronze- 

 greendarker on neck. Throat dark gray; remainder of underside 

 dark brown with bronzy-green feathers on sides of breast 

 and flanks. Median rectrices dark bronze-green, rest dark 

 bluish-purple. Wings purple-brown. Bill and feet black. 



Total length, 2 | in.: Wings, 2, Tail, I |. Culmen,|. 



Female. ~ Upperside bronzy-green. Underside smoky gray, 

 lighter on throat, centre of breast, and abdomen. Median 

 rectrices bronzy-green, lateral purplish, outermost with gray 

 tips. Bill and feet black. Same size as male. 



One of the specimens which I have in my collection, formerly 

 in Riocour Collection, has on its laoel O.chlorolophus, Vieillot. 



I think that many more species of this charming genus will 

 be found when all the West Indies islands will be more tho- 

 roughly explored than what they have been up to the present 

 time. 



78. Bellona emigrans, Lawr. Ann. N.-Y. Lye. Nat. Hist., 

 vol. I, p. 50. 



Blue and violet Crest. 



La Bellone à huppe violette et bleue. 



Habitat. — Venezuela? Grenada. 



Male. — The basal half of the crest is of a shining emerald- 

 green ; the terminal half deep reddish-violet ; the upper plu- 

 mage is dark grass-green. Tail feathers blackish-purple ; the two 

 central ones washed with green ; quills light purple. Throat 

 smoky -gray ; breast and abdomen smoky-black. Bill and feet 

 black. 



Total length, 3 i iu.: Wings, i\. Tail, 1 ^.Culmen,f 6 . 



Female. — Without the brillant crest. Underside whitish- 

 gray. « Lawr, loc. cit. » 



This species is closely allied to 0. cristalus from Barbadoes ; 

 the two colors of the crest are equally divided in both, but they 

 differ in shades of coloring ; the green in this species is without 

 the strong golden tinge existing in the other and the violet is 

 rather deeper in color, which color it retains in all positions 

 whereas in some lights that of 0. crlslatusia greenish, the upper 

 plumage of 0. cristatus is lighter and golden green. It is also 

 smaller with a longer bill. They differ strongly in the ends of 

 the tail feathers, these being obtusely pointed in the new spe- 

 cies aud rounded in the other. I have some specimens exactly 

 like this description from Grenada. 



