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 and Ryland, J. S., Cheilostomatous Bryozoa. Part 2. Hippothoidea - Celleporoidea, vol. 14. Shewsbury: Field Studies Council, 1999.

P. J.  Hayward and Ryland, J. S., Cheilostomatous Bryozoa Part 1. Aeteoidea - Cribrilinoidea, vol. 10. Shrewsbury: Field Studies Council, 1998.

P. J.  Hayward and Ryland, J. S., Cyclostome Bryozoans, vol. 34. London: E.J. Brill for the Linnaean Society , 1985.

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