S. D.  Cairns, Gershwin, L. - A., Brook, F. J., Pugh, P., Dawson, E. W., V., O. Ocaña, Vervoort, W., Williams, G., Watson, J. E., Opresko, D. M., Schuchert, P., P. HIne, M., Gordon, D. P., Campbell, H. J., Wright, A. J., Sánchez, J. A., and Fautin, D. G., ?Phylum Cnidaria?, in New Zealand Inventory of Biodiversity. Volume One. Kingdom Animalia: Radiata, Lophotrochozoa, and Deuterostomia, vol. 1 (568 pages), D.  P.Gordon, Ed. Christchurch, New Zealand: Canterbury University Press, 2009, pp. 59-101.