Jarms 1987. Thecocodium quadratum (Werner 1965) redescribed, T. penicillatum sp. nov., and a method for rearing hydrozoans. Bouillon, J.; Boero, F.; Cicogna, F.; Cornelius, P.F.S.[Eds]. Modern trends in the systematics, ecology, and evolution of hydroids and hydromedusae., Clarendon Press, Oxford, 1987: 1-328. Chapter pagination: 57-66