MolluscaBase eds. (2021). MolluscaBase.
Plawenia sphaera Scheltema & Schander, 2000. Accessed through: Marine Species Traits editorial board (2021) Marine Species Traits at: http://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=180847 on 2024-08-10
Marine Species Traits editorial board (2024). Marine Species Traits.
Plawenia sphaera Scheltema & Schander, 2000. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=180847 on 2024-08-10