MolluscaBase eds. (2024). MolluscaBase. Biforina perversa var. parva Milaschewitsch, 1916. Accessed through: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2024) European Register of Marine Species at: http://www.marbef.org/data/aphia.php?p=taxdetails&id=752508 on 2024-07-04
Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2024). European Register of Marine Species. Biforina perversa var. parva Milaschewitsch, 1916. Accessed at: http://www.marbef.org/data/aphia.php?p=taxdetails&id=752508 on 2024-07-04