MolluscaBase eds. (2021). MolluscaBase.
Pleurotoma (Bela) violacea var. gigantea Mörch, 1869. Accessed through: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2021) European Register of Marine Species at: http://www.marbef.org/data../aphia.php?p=taxdetails&id=752543 on 2024-05-01
Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2024). European Register of Marine Species.
Pleurotoma (Bela) violacea var. gigantea Mörch, 1869. Accessed at: https://vliz.be/vmdcdata/narms/narms.php?p=taxdetails&id=752543 on 2024-05-01