Read, G.; Saiz-Salinas, J. (2024). World Sipuncula Database.
Sipunculus norvegicus Danielssen, 1869. Accessed through: The UK Marine Environmental Data and Information Network (2024) Marine Species of the British Isles and Adjacent Seas (MSBIAS): a checklist of species derived from the UNICORN and Marine Recorder applications at: https://www.marinespecies.org/msbias/aphia.php?p=taxdetails&id=424077 on 2024-07-07
The UK Marine Environmental Data and Information Network (2024). Marine Species of the British Isles and Adjacent Seas (MSBIAS): a checklist of species derived from the UNICORN and Marine Recorder applications.
Sipunculus norvegicus Danielssen, 1869. Accessed at: https://www.marinespecies.org/msbias/aphia.php?p=taxdetails&id=424077 on 2024-07-07
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