P. J.  Hayward, ?Preliminary observations on settlement growth in populations of Alcyonidium hirsutum (Fleming).?, in Living and Fossil Bryozoa, London: Academic Press, 1973, pp. 107-113.

J. N.  Amat and Tempera, F., ?Zoobotryon verticillatum Dell Chiaje, 1822 (Bryozoa), a new occurrence in the archipelago of the Azores (north-eastern Atlantic)?, Marine Pollution Bulletin, vol. 58, pp. 761-764, 2009.

J. S.  Porter, Ellis, J. R., Hayward, P. J., Rogers, S. I., and Callaway, R., ?Geographic variation in the abundance and morphology of the bryozoan Alcyonidium diaphanum (Ctenostomata: Alcyonidiidae) in UK coastal waters?, Journal of the Marine Biological Association of the United Kingdom, vol. 82, 2002.

J. S.  Porter, Hayward, P. J., and Jones, M. E. Spencer, ?The identity of Alcyonidium diaphanum (Bryozoa: Ctenostomatida)?, Journal of the Marine Biological Association of the United Kingdom, vol. 81, 2001.

P. J.  Hayward, Ctenostome Bryozoans, vol. 33. London: E.J Brill for the Linnaean Society, 1985.