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| Book name (en) | A Monograph of the Trochilidae,or Family of Humming-birds |
| Book volume | Vol.3 |
| Identifier | 3-12 |
| Gould Scientific name | Gouldia langsdorffi |
| Scientific name | Discosura langsdorffi |
| Gould name (en) | Langsdorff's Thorn-tail |
| Name (en) | Black-bellied Thorntail |
| Order | APODIFORMES |
| Family | Trochilidae |