MolluscaBase eds. (2021). MolluscaBase.
Pachydrobia variabilis Poirier, 1881. Accessed through: Marine Species Traits editorial board (2021) Marine Species Traits at: http://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1325568 on 2024-05-01
Marine Species Traits editorial board (2024). Marine Species Traits.
Pachydrobia variabilis Poirier, 1881. Accessed at: https://marinespecies.org/traits/aphia.php?p=taxdetails&id=1325568 on 2024-05-01