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. Plumarella gracilis Kinoshita, 1908. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=287668 on 2026-08-04
Kinoshita, K. (1908). Primnoidae von Japan. The journal of the College of Science, Imperial University of Tokyo, Japan. 23(12): 1-74, plates 1-6.