World Register of Marine Species (WoRMS)
Messing, C.; Gondim, A.I.; Markello, K.; Poatskievick Pierezan, B.; Taylor, K.; Eléaume, M. (2026). World List of Crinoidea. Prometra perplexa Gislén, 1927. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=711429 on 2026-08-11
Gislén, T. (1927). Papers from Dr. Th. Mortensen's Pacific Expedition 1914–16. Japanese crinoids. Videnskabelige Meddelelser fra Dansk Naturhistorisk Forening i København. 83: 1–69, pls 1, 2.