Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2024). European Register of Marine Species.
Pseudocnus dubiosus koellikeri (Semper, 1868). Accessed at: https://vliz.be/vmdcdata/narms/narms.php?p=taxdetails&id=529428 on 2024-03-29