World Register of Marine Species (WoRMS)
McFadden, C.S.; Cordeiro, R.; Samimi-Namin, K.; Hoeksema, B.W., Williams, G.; van Ofwegen, L.P. (2026). World List of Octocorallia. Nicella robusta Cairns, 2007. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=286178 on 2026-08-03
Cairns, S.D. (2007). Studies on western Atlantic Octocorallia (Gorgonacea: Ellisellidae). Part 7: The genera Riisea Duchassaing & Michelotti, 1860 and Nicella Gray, 1870. Proceedings of the Biological Society of Washington. 120(1): 1-38.