MolluscaBase eds. (2024). MolluscaBase.
Placiphorella borealis Pilsbry, 1893. Accessed through: Marine Species Traits editorial board (2024) Marine Species Traits at: https://www.marinespecies.org/traits./aphia.php?p=taxdetails&id=386369 on 2024-05-16
Marine Species Traits editorial board (2024). Marine Species Traits.
Placiphorella borealis Pilsbry, 1893. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=386369 on 2024-05-16