Read, G.; Saiz-Salinas, J. (2025). World Sipuncula Database.
Phascolion (Phascolion) strombus strombus (Montagu, 1804). Accessed through: Land J. van der (ed). (2008) UNESCO-IOC Register of Marine Organisms (URMO) at: https://marinespecies.org/urmo/aphia.php?p=taxdetails&id=410749 on 2025-06-24
Land J. van der (ed). (2008). UNESCO-IOC Register of Marine Organisms (URMO).
Phascolion (Phascolion) strombus strombus (Montagu, 1804). Accessed at: https://marinespecies.org/urmo/aphia.php/aphia.php?p=taxdetails&id=410749 on 2025-06-24