Kramp P.L. (1948b). Trachymedusae and Narcomedusae from the "Michael Sars" North Atlantic deep-sea Expedition 1910, with additions on Anthomedusae, Leptomedusae, and Scyphomedusae.
Report on the scientific results of the "Michael Sars" north Atlantic deep-sea expedition 1910. 5(9): 1-23, pl. 1.