Monograph of the Trochilidae, or family of hummingbirds: Part IV
Primary tabs
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- Sword-billed Hummingbird plate 233
- Plate depicting: Ensifera ensifera (Boissonneau, 1840) -- Sword-billed Hummingbird. Alternate name, as printed: Docimastes ensiferus
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- Empress Brilliant plate 234
- Plate depicting: Heliodoxa imperatrix (Gould, 1856) -- Empress Brilliant. Alternate name, as printed: Eugenia imperatrix