Froese, R. and D. Pauly. Editors. (2021). FishBase. Petromyzontiformes. Accessed through: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2021) European Register of Marine Species at: https://www.marbef.org/data/aphia.php?p=taxdetails&id=10201 on 2024-07-07
Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2024). European Register of Marine Species. Petromyzontiformes. Accessed at: http://www.marbef.org/data/aphia.php?p=taxdetails&id=10201 on 2024-07-07