MolluscaBase eds. (2024). MolluscaBase. Cypraea pyrum insularum (F. A. Schilder, 1928). Accessed through: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2024) European Register of Marine Species at: https://www.marbef.org/data/aphia.php?p=taxdetails&id=751547 on 2024-04-26
Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2024). European Register of Marine Species. Cypraea pyrum insularum (F. A. Schilder, 1928). Accessed at: https://marbef.org/data../aphia.php?p=taxdetails&id=751547 on 2024-04-26
original description(ofZonaria pyrum insularum F. A. Schilder, 1928)Schilder, F.A. (1928). Die variabilität der Schalenlänge der Cypraeidae (Moll. Gastr.). <em>Zoologischer Anzeiger.</em> 79(1/2):5-21. page(s): 9, 10. [details]