MolluscaBase eds. (2024). MolluscaBase.
Cassis harpaeformis Lamarck, 1803 †. Accessed through: Marine Species Traits editorial board (2024) Marine Species Traits at: https://www.marinespecies.org/traits./aphia.php?p=taxdetails&id=1561855 on 2024-05-16
Marine Species Traits editorial board (2024). Marine Species Traits.
Cassis harpaeformis Lamarck, 1803 †. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1561855 on 2024-05-16