MolluscaBase eds. (2024). MolluscaBase.
Protothaca columbiensis (G. B. Sowerby I, 1835). Accessed through: Marine Species Traits editorial board (2024) Marine Species Traits at: https://marinespecies.org/traits/aphia.php?p=taxdetails&id=1671300 on 2024-04-30
Marine Species Traits editorial board (2024). Marine Species Traits.
Protothaca columbiensis (G. B. Sowerby I, 1835). Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1671300 on 2024-04-30