Opinion 406 Use of the Plenary Powers to secure that the specific name nigricouis Brehm, 1831, as published in the combination Podiceps nigricouis shall be the oldest available specific name for the Black-Necked Grebe (class Aves)
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 13, issue 7, pages 119-130
Date published:1956-07-24