Gravili, C., Vito, D. D., Camillo, C. G. D., Martell, L., Piraino, S. and Boero, F. (2015) “The non-Siphonophoran Hydrozoa (Cnidaria) of Salento, Italy with notes on their life-cycles: an illustrated guide”, Zootaxa. Auckland, New Zealand, 3908(1), pp. 1–187. doi: 10.11646/zootaxa.3908.1.1.