Silén, L. (1946). On two groups of Bryozoa living in Shells of Molluscs. <em>Arkiv för Zoologi. Stockholm.</em> 38B(1): 1-7. (look up in RoR) [details] Available for editors
Bock, P. (2021). World List of Bryozoa. Penetrantioidea Silén, 1946. Accessed through: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2021) European Register of Marine Species at: http://www.marbef.org/data/aphia.php?p=taxdetails&id=827154 on 2024-03-28
Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2024). European Register of Marine Species. Penetrantioidea Silén, 1946. Accessed at: https://www.marbef.org/data/aphia.php?p=taxdetails&id=827154 on 2024-03-28
original descriptionSilén, L. (1946). On two groups of Bryozoa living in Shells of Molluscs. <em>Arkiv för Zoologi. Stockholm.</em> 38B(1): 1-7. (look up in RoR) [details] Available for editors