McFadden, C.S.; Cordeiro, R.; Williams, G.; van Ofwegen, L. (2024). World List of Octocorallia.
Clavularia modesta (Verrill, 1874). Accessed through: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2024) European Register of Marine Species at: https://www.vliz.be/vmdcdata/narms/narms.php?p=taxdetails&id=158266 on 2024-06-18