(ofThyonidium magnum Ludwig, 1882)Ludwig, HL., 1882. List of the holothurians in the collection of the Leyden Museum. Notes Leyden Museum. 4: 127–137[details]
WoRMS (2024). Massinium magnum (Ludwig, 1882). Accessed at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=529531 on 2024-07-09
original description(ofThyonidium magnum Ludwig, 1882)Ludwig, HL., 1882. List of the holothurians in the collection of the Leyden Museum. Notes Leyden Museum. 4: 127–137[details]
Present Present in aphia/obis/gbif/idigbio Inaccurate Introduced: alien Containing type locality