Synonyms

• Anachilus ucayalae (protonym)
• Megaxenops ferrugineus Berlioz, 1966
• Simoxenops ucayalae (Chapman, 1928)

Primary references

• American Museum Novitates no.332 p.11,12 fig.1

Additional references

• Robbins, M.B. & Zimmer, K.J. 2005. Taxonomy, vocalizations and natural history of Philydor dimidiatum (Furnariidae), with comments on the systematics of Syndactyla and Simoxenops. Bulletin of the British Ornithologist's Club 125, 212–228. Full text BHLReference page. 

• Derryberry, E., Claramunt, S., Derryberry, G., Chesser, R.T., Cracraft, J., Aleixo, A., Pérez-Emán, J., Remsem, Jr, J.V. & Brumfield, R.T. (2011). Lineage diversification and morphological evolution in a large-scale continental radiation: the Neotropical ovenbirds and woodcreepers (Aves: Furnariidae). Evolution 65: 2973–2986. DOI: 10.1111/j.1558-5646.2011.01374.x Full article (PDF). Reference page. 

Links

• IUCN: Syndactyla ucayalae  (Near Threatened)