Saiz, J. (2021). World Sipuncula database.
Phascolion (Isomya) hedraeum Selenka & De Man, 1883. Accessed through: RAS (Eds.) (2021) Register of Antarctic Species at: http://ras.biodiversity.aq/aphia.php?p=taxdetails&id=175037 on 2024-03-28
RAS (Eds.) (2024). Register of Antarctic Species.
Phascolion (Isomya) hedraeum Selenka & De Man, 1883. Accessed at: https://ras.biodiversity.aq/aphia.php?p=taxdetails&id=175037 on 2024-03-28