Venezuelan Emerald (Panychlora stenura), John Gould This species was named by me Chlorostilbon acuticaudus in 1860; but it had been called by Drs. Cabanis and Heine Panychlora stenura in the same year; and their name apparently having been published before mine, I have adopted it in the present work. This illustration has been restored to its original vibrancy by enhancing colors and removing unwanted marks. A monograph of the Trochilidæ, or family of humming-birds was published between 1849 and 1887 by English ornithologist John Gould. This monumental work depicts and describes all the known species of hummingbirds at the time - comprising 418 lithographic plates and information on 537 species."