McFadden, C.S.; Cordeiro, R.; Williams, G.; van Ofwegen, L. (2024). World List of Octocorallia.
Calibelemnon symmetricum Nutting, 1908. Accessed through: Marine Species Traits editorial board (2024) Marine Species Traits at: https://marinespecies.org/traits/aphia.php?p=taxdetails&id=288080 on 2024-06-13
Marine Species Traits editorial board (2024). Marine Species Traits.
Calibelemnon symmetricum Nutting, 1908. Accessed at: https://marinespecies.org/traits/aphia.php?p=taxdetails&id=288080 on 2024-06-13