Cheilostomatous Bryozoa: 2. Hippothooidea - Celleporoidea: notes for the identification of British species
Hayward, P.J.; Ryland, J.S. (1999). Cheilostomatous Bryozoa: 2. Hippothooidea - Celleporoidea: notes for the identification of British species. 2nd ed. Synopses of the British Fauna, N.S. 10. Field Studies Council: Shrewsbury. ISBN 1-85153-263-3. VII, 416 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
