Saiz, J. (2021). World Sipuncula Database.
Siphonosoma vastum (Selenka & B?low, 1883). Accessed through: Land J. van der (ed). (2008) UNESCO-IOC Register of Marine Organisms (URMO) at: https://www.marinespecies.org/urmo/aphia.php?p=taxdetails&id=266513 on 2024-07-07
Land J. van der (ed). (2008). UNESCO-IOC Register of Marine Organisms (URMO).
Siphonosoma vastum (Selenka & Bülow, 1883). Accessed at: https://marinespecies.org/urmo/aphia.php?p=taxdetails&id=266513 on 2024-07-07