MolluscaBase eds. (2024). MolluscaBase.
Syntomodrillia circinata A. W. B. Powell, 1944 †. Accessed through: Marine Species Traits editorial board (2024) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1636856 on 2024-05-06
Marine Species Traits editorial board (2024). Marine Species Traits.
Syntomodrillia circinata A. W. B. Powell, 1944 †. Accessed at: https://marinespecies.org/traits/aphia.php?p=taxdetails&id=1636856 on 2024-05-06