Common and scientific names of aquatic invertebrates of the United States and canada - Cairns, S.D., D.R. Calder, A. Brinckmann-Voss, C.B. Castro, P.R. Pugh, C.E. Cutress, W.C. Jaap, D.G. Fautin, R.J. Larson, G.R. Harbison, M.N. Arai & D.M. Opresko (Cnidaria and Ctenophora. American Fisheries Society, Bethesda, 1991)