Harmer, S. F. (1915). The Polyzoa of the Siboga Expedition. Part 1. Entoprocta, Ctenostomata and Cyclostomata. <em>Siboga Expedition Reports.</em> 28A: 1-180., available online athttps://www.biodiversitylibrary.org/page/2189227[details]
Bock, P. (2025). World List of Bryozoa. Arachnoidella protecta Harmer, 1915. Accessed through: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2025) European Register of Marine Species at: http://marbef.org//marbef.org/data/aphia.php?p=taxdetails&id=471958 on 2026-05-31
Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2026). European Register of Marine Species. Arachnoidella protecta Harmer, 1915. Accessed at: http://www.marbef.org/data/aphia.php?p=taxdetails&id=471958 on 2026-05-31
original descriptionHarmer, S. F. (1915). The Polyzoa of the Siboga Expedition. Part 1. Entoprocta, Ctenostomata and Cyclostomata. <em>Siboga Expedition Reports.</em> 28A: 1-180., available online athttps://www.biodiversitylibrary.org/page/2189227[details]