Schuchert, P.; Choong, H.; Galea, H.; Hoeksema, B.; Lindsay, D.; Manko, M.; Pica, D. (2025). World Hydrozoa Database.
Errina aspera (Linnaeus, 1767). Accessed through: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2025) European Register of Marine Species at: http://www.marbef.org//www.marbef.org/data/aphia.php?p=taxdetails&id=117957 on 2025-05-07
Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2025). European Register of Marine Species.
Errina aspera (Linnaeus, 1767). Accessed at: http://marbef.org//marbef.org/data/aphia.php?p=taxdetails&id=117957 on 2025-05-07