(Tyrannidae; Ϯ Eastern Olivaceous Flatbill R. olivaceus) Anagram of genus Cyclorhynchus Sundevall, 1836, flatbill; "Gen. RHYNCHOCYCLUS **) Nob. — Kreisschnabel.   Cyclorhynchus Sundev. 1835 (nec Kaup 1829).   194. 1. R. flaviventer Nob.  ...  195. 2. R. brevirostris Nob.   ...   **) Es gehören hierher noch u.a.:  3. R. aequinoctialis.  ...  4. R. olivaceus.  ...  Platyrhynchus sulphurescens fem. Spix Av. Bras. II. p. 10. t. 12. 2.   ...  5. R. sulphurescens.—Platyrhynchus sulphurescens mas. Spix Av. Bras. II. p. 10. t. 12.1. — Platyrhynchus nuchalis Wied Beitr. III. p. 971.   ...  6. R. megacephalus." (Cabanis & Heine 1859); "Rhynchocyclus Cabanis and Heine, 1859, Mus. Heineanum, 2, p. 56. New name for Cyclorhynchus Sundevall.   ...   Under the new rules (Art. 56), Cyclorhynchus Sundevall is available. However, it is now a nomen oblitum, not having appeared in the literature for over 100 years." (Traylor in Peters 1979, VIII, 98) (see Cyclorhynchus).
Var. Rhynchcyclous.
Synon. Craspedoprion.

Search for more names on the Key to Scientific Names in Ornithology by James A. Jobling.
Recommended citation
Jobling, J. A. (2019). Key to Scientific Names in Ornithology. In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.) (2019). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from www.hbw.com on 16 January 2019).