SYNOPSIS OF THE TROCHILID^. 163 



by a dark line of the general tint of the body *, gorget 

 bright emerald-green, spreading upon the side of the 

 neck; tail very ample, nearly square. Inhabits 

 Mexico. 



PL. XXV. VOL. I. 6. T. CORA, the Cora Humming- Bird. 

 Orthorhynchus Cora, Less. Zool. de La Coq. xxxi. 

 fig. 4. Above and on the flanks brilliant-green ; 

 gorget of amethystine-red, lower parts pure-white ; 

 tail very long, with the centre feathers much exceed- 

 ing the others. Inhabits the elevated country be- 

 tween Callao and Lima. 



PL. XXI. XXII. VOL. I 7. T. CORNUTUS, Double-crested 



Humming-Bird Neuw. Voy. au Bres. Trochilus bi- 

 lopWs, Temm. xviii. Ornismya chrysolopha, Less. 

 O. M. vii. Back and shoulders golden-green ; fore- 

 head and gorget, the latter finishing in a point, bright 

 bluish-purple, inclining more to blue on the forehead, 

 above the eyes two crests of brilliant golden-orange ; 

 under parts pure white ; tail very long, feathers near- 

 ly equally graduated. Female wants the crest. In- 

 habits the exalted Campos-Geraes at the sources of 

 the river Don Francisco. 



8. T. AURITUS, Violet-eared Humming-Bird. Vieill. 

 Ois. Dor. 25. and 26. Violet-eared Humming-Bird, 

 Lath. I/Oiseaux-mouche oreilles d'azur, Less. O. 

 M. x. and xi. Above brilliant green, beneath pure 

 white,'vent greenish ; behind the ears a tuft of round 

 violet-coloured feathers, somewhat elongated ; a line 

 from the rictus beneath the eyes black ; tail wedge- 

 shaped, the four centre feathers blackish-green, the 

 others white. Female without the tufts, under parts 

 tinged with grey. Inhabits Guiana and Brazil. 



PL. XIII. VOL. I. PL. XV. VOL. II 9. T. PETASOPHORUS, 

 Violet-tufted Humming-Bird Neuw. Temm. PL 

 Color, cciii. fig. 3. Oiseaux-mouche petasophore, 

 Less. O. M. xiii. and lix. Plumage bright-green, 

 palest on the vent ; under tail-coverts pure white ; 

 throat with scaly-formed steel-blue feathers ; elon- 

 gated tuft behind the ears rich violet, changing from 

 nearly orange-red to blue ; tail even. Female bril- 



