Saiz, J. (2021). World Sipuncula Database.
Cloeosiphon aspergillus (Quatrefages, 1865). 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=266631 on 2025-06-06
Land J. van der (ed). (2008). UNESCO-IOC Register of Marine Organisms (URMO).
Cloeosiphon aspergillus (Quatrefages, 1865). Accessed at: https://www.marinespecies.org/urmo/aphia.php/aphia.php?p=taxdetails&id=266631 on 2025-06-06