Bock, P. (2024). World List of Bryozoa. Columnella borealis borealis (Levinsen, 1909). Accessed through: Marine Species Traits editorial board (2024) Marine Species Traits at: https://marinespecies.org/traits./aphia.php?p=taxdetails&id=468335 on 2024-07-16
Marine Species Traits editorial board (2024). Marine Species Traits. Columnella borealis borealis (Levinsen, 1909). Accessed at: https://marinespecies.org/traits./aphia.php?p=taxdetails&id=468335 on 2024-07-16