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. Echinogorgia modesta Studer, 1889. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=289862 on 2026-08-10
Studer, T. (1889). Supplementary report on the Alcyonaria collected by HMS Challenger during the years 1873-76. Report on the scientific results of the voyage of H.M.S. Challenger during the years 1873-76, Zoology. 32 (81): 1-31, plates 1-6.