Template:Zimmer, 1939

• Zimmer, J.T. 1939. Studies of Peruvian Birds N° XXXIII. The genera Tolmomyias and Rhynchocyclus, with further notes on Ramphotrigon. American Museum Novitates 1045: 1-24. hdl: 2246/4829 PDF 
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Nomenclatural acts

• Date of publication: 11 October 1939

New names (12)

• Tolmomyias sulphurescens inornatus (p.4)
• Tolmomyias sulphurescens insignis (p.5)
• Tolmomyias sulphurescens mixtus (p.6)
• Tolmomyias sulphurescens duidae (p.7)
• Tolmomyias sulphurescens confusus (p.8)
• Tolmomyias flavotectus obscuriceps = Tolmomyias assimilis obscuriceps (p.10)
• Tolmomyias flavotectus clarus = Tolmomyias assimilis clarus (p.11)
• Tolmomyias flavotectus calamae = Tolmomyias assimilis calamae (p.12)
• Tolmomyias flavotectus neglectus = Tolmomyias assimilis neglectus (p.12)
• Tolmomyias flavotectus paraensis = Tolmomyias assimilis paraensis (p.13)
• Tolmomyias flaviventris dissors (p.16)
• Ramphotrigon megacephala boliviana = Ramphotrigon megacephalum bolivianum (p.17)