Opinion 914. Holothuria monacaria Lesson, 1830, and Holothuria umbrina Rüppel & Leuckardt, 1828 (Holothuroidea): suppressed under the plenary powers
International Commission on Zoological Nomenclature
Article
1970
The Bulletin of zoological nomenclature
27
31--32
BioStor
London International Trust for Zoological Nomenclature
BioStor: https://biostor.org/reference/1589