Direction 83 Suppression under the Plenary Powers of the specific name ferox Gmelin (S. G.), 1771, as published in the combination Accipiter Ferox (class Aves) (Direction supplementary to Opinion 67)
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 1E, issue E.20, pages 361-370
Date published:1957-12-17