Literature
- Kramp, P.L. 1961. Synopsis of the medusae of the world. Journal of the Marine Biological Association of the United Kingdom 40: 1-469.
- Russell, F.S. 1980. Trachymedusae. Families: Geryonidae, Ptychogastriidae, Halicreatidae. Fiches d'Identification du Zooplancton, 164 (.