Sierwald, P.; Decker, P.; Spelda, J. (2025). MilliBase.
Petalorhacus Hoffman, 1997. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=892298 on 2025-04-30
Marine Species Traits editorial board (2025). Marine Species Traits.
Petalorhacus Hoffman, 1997. Accessed at: https://marinespecies.org/traits/aphia.php?p=taxdetails&id=892298 on 2025-04-30