Direction 13 Addition of the generic name Manatus Brünnich, 1771 (class Mammalia) to the Official List of Rejected and Invalid generic names in Zoology (Direction supplementary to Opinion 112)
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1955, in volume 1C, issue C4, pages 57-66
Date published:1955-05-19