Monograph of the Trochilidae, or family of hummingbirds: Part I
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- Untitled plate 18
- Plate depicting: Phaethornis fraterculus
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- Long-billed Hermit, Western Long-tailed Hermit plate 19
- Plate depicting: Phaethornis longirostris cephalus (Bourcier & Mulsant, 1848) -- Long-billed Hermit, Western Long-tailed Hermit. Alternate name, as printed: Phaethornis cephalus