(syn. Ramphastos Ϯ Keel-billed Toucan R. sulfuratus) Gr. βου- bou-  huge  < βους bous  bull; ῥυγχος rhunkhos  bill; "It is more fully described and figured by Conrad Gesner in 1560 (Icones Avium Omnium, p. 130), and the present generic name first occurs on the same page: "Burhynchus aut Ramphestes appellari poterit."  ... [subgenus] 2. Burhynchus" (Cassin 1867).

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 www.hbw.com on 19 December 2018).