Read, G.; Saiz-Salinas, J. (2024). World Sipuncula Database.
Phascolion Théel, 1875. Accessed through: Nozères, C., Kennedy, M.K. (Eds.) (2024) Canadian Register of Marine Species at: https://www.marinespecies.org/carms/aphia.php?p=taxdetails&id=136025 on 2024-05-09
Nozères, C., Kennedy, M.K. (Eds.) (2024). Canadian Register of Marine Species.
Phascolion Théel, 1875. Accessed at: https://marinespecies.org/CaRMS/aphia.php?p=taxdetails&id=136025 on 2024-05-09