C. E.  Mills and Larson, R. J., ?Scyphozoa: Scyphomedusae, Stauromedusae, and Cubomedusae?, in The Light and Smith Manual: Intertidal Invertebrates from Central California to Oregon, Fourth Edition, Completely Revised and Expanded, Fourth., J. T.  Carlton, Ed. Berkeley: University of California Press, 2007, pp. 168-173.