170 
SYNOPSIS OF THE TROCHILID^. 
throat and breast with an amethystine gorget, suc- 
ceeded by a band of white ; lower parts cinnamon- 
red ; tail equal, golden-green, black at the tips, ex- 
cept the two outside feathers, which are tipped with 
white. Inhabits Brazil. 
We h&ve placed this provisionally in Cynanthus; the bird 
seems only well known in its yoimg state, when the tall is 
square. It is introduced upon the authority of Le^on. 
Pl. XX-IX. Vol. I. — 6. C. LEucOTis, 'U'hite-eared Hum- 
ming-Bird. -^Trochilus leucotis, Viexll. Oiseau- 
mouche Arsenne, Less. O. M. ix. Front, cheeks and 
throat azure-blue; crown brown, shading into golden- 
green on the upper parts ; a very marked white streak 
from the eye above the auriculars; gorget bright 
emerald-green ; belly and vent grojisb-green ; under 
tail-coverts pure white. Inhabits Brazil. 
Pl. XXJV. Vol. I.— 7. C. vesper. The Evening Hum- 
ming-Bird.~Oiscau-mouche vesper, Ornismya ves- 
per, Less. Col. xix. vi. Golden-green above, beneath 
white ; gorget rich violet. Inhabits Chili. 
Pl. XIII. Vol. II.— 8. C? tricolor, Tri-coloured Hum- 
ming-Bird. — Lcl Tricolore, Less. Troch. pl. xiv. 
Above golden-green ; throat with a gorget of bright 
carmine ; feathers rounded and capable of expanding ; 
imder parts pure white, greenish upon the flanks ; 
tail slightly graduated, centre feathers golden green, 
others steel-blue, margined with chestnut. Inhabits 
Mexico. 
Swainson appe&rs to make the form of the tail a principal cha- 
racter in his division Cynanthus. ^Ve have introduced T. 
tricolor* therefore, with a mark of doubt* from the difference 
inform. In other respects it is closely allied. 
9. C. PLATunns, Racket-tailed Humming-Bird — Lath. 
Oen. Hist. iv. p. 388. Oiseau-mouclie a raquettes, 
Less. Col. xxxi. Above dull green ; gorget and breast 
bright emerald-green ; tips of the prolonged feathers 
nearly round ; tarsi unplumed. Inhabits Guiana. 
Pl. XXII. VoL. II 10. C. Dndbrwoodii, Rough-legged 
Racket-tailed Humming-Bird— Troch. xxxii. 
Above dull green, a white band across the rump ; gor- 
