Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2023). European Register of Marine Species.
Mesothuria (Penichrothuria) cathedralis Heding, 1940. Accessed at: http://www.marbef.org/data/aphia.php?p=taxdetails&id=529391 on 2023-02-08