(Trochilidae; Ϯ Needle-billed Hermit A. philippii) Gr. αμετρος ametros  beyond measure, disproportionate  < intensive prefix α- a- ; μετρον metron  measure; ορνις ornis, ορνιθος ornithos  bird; "*Ametrornis abnormis (Tr. - NATTER.) RCHB. - Brasil.   * --- Bourcieri (Tr. - LESS. 1832.) RCHB. - Cajenne.   --- De Filippi (Tr. - BOURC. 1847.) - Bolivia.   --- Oseryi (Tr. - BOURC. 1852) - patria?" (Reichenbach 1854).
Var. Ametornis.
Synon. Orthornis.

Search for more names on the Key to Scientific Names in Ornithology by James A. Jobling.
Recommended citation
Jobling, J. A. (2018). Key to Scientific Names in Ornithology. In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.) (2018). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 10 December 2018).