Kalk, M. (1958). Coelenterata, in: Macnae, W. et al. (Ed.) A natural history of Inhaca Island, Moçambique. pp. 46-48
In: Macnae, W.; Kalk, M. (Ed.) (1958). A natural history of Inhaca Island, Moçambique. Witwatersrand University Press: Johannesburg. 163, 11 plates pp., more
