Ctenostome bryozoans: keys and notes for the identification of the species
Hayward, P.J. (1985). Ctenostome bryozoans: keys and notes for the identification of the species. Synopses of the British Fauna, N.S. 33. E.J. Brill/W. Backhuys: London. ISBN 90-04-07853-6. VII, 169 pp.
Deel van: Barnes, R.S.K.; Crothers, J.H. (Ed.) Synopses of the British Fauna. Linnean Society of London: London; New York. ISSN 0082-1101, meer