There is debate over whether the curl-crested araçari’s scientific name should be spelled Pteroglossus beauharnaisii or Pteroglossus beauharnaesii.
There is debate over whether the curl-crested araçari’s scientific name should be spelled Pteroglossus beauharnaesii or Pteroglossus beauharnaesii.
Pteroglossus beauharnaesii has been in universal use since 1900 and is protected either by Article 23.9 or 33.3.1 of the Code, depending on the interpretation of the way the younger name was introduced. Under the International Code of Zoological Nomencalture, the valid form and source of the scientific name for the curl-crested araçari should remain Pteroglossus beauharnaesii. Although it is an incorrect subsequent spelling, its challenger, Pteroglossus beauharnaisii, is a nomen oblitum.