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Monograph of the Trochilidae, or family of hummingbirds: Part IV

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Monograph of the Trochilidae, 1:228
Monograph of the Trochilidae, 1:228
Monograph of the Trochilidae, 1:229
Monograph of the Trochilidae, 1:229
Monograph of the Trochilidae, 1:230
Monograph of the Trochilidae, 1:230
Monograph of the Trochilidae, 1:231
Monograph of the Trochilidae, 1:231
Monograph of the Trochilidae, 1:232
Monograph of the Trochilidae, 1:232
Purple-throated Sunangel plate 241
Purple-throated Sunangel plate 241
Plate depicting: Heliangelus viola (Gould, 1853) -- Purple-throated Sunangel. Alternate name, as printed: Heliotrypha viola
Monograph of the Trochilidae, 1:234
Monograph of the Trochilidae, 1:234
Monograph of the Trochilidae, 1:235
Monograph of the Trochilidae, 1:235
Monograph of the Trochilidae, 1:236
Monograph of the Trochilidae, 1:236
Monograph of the Trochilidae, 1:237
Monograph of the Trochilidae, 1:237
Monograph of the Trochilidae, 1:238
Monograph of the Trochilidae, 1:238
Amethyst-throated Sunangel plate 242
Amethyst-throated Sunangel plate 242
Plate depicting: Heliangelus amethysticollis  decolor (Zimmer, 1951) -- Amethyst-throated Sunangel. Alternate name, as printed: Heliangelus clarissae