Topaza Pella
Habitat: Cayenne and the adjacent countries
I find that specimens from Demerara have more richly-coloured throat-marks than those procured in Cayenne; there is also another variety distinguished by the great breadth of their lengthened tail-feathers; but these differences are not of specific importance.
Featuring all 422 illustrated species from John Gould’s A Monograph of the Trochilidæ, or Family of Humming-Birds arranged by color.