1. Brancato, M. S. &Woollacott, R. M. (1982): Effect of microbial films on settlement of bryozoan larvae (Bugula simplex, B. stolonifera andB. turrita).—Mar. Biol.71, 51–56, 2 Figs., 5 Tabs., Berlin
2. Canu, F. &Bassler, R. S. (1925): Les bryozoaires du Maroc et de Mauritanie (ler Mémoire).—Mém. Soc. Sci. Nat. Maroc10, 1–79, 9 Pls. Rabat
3. Cook, P. L. (1968): Observations on living Bryozoa.—Atti Soc. Ital. Sci. Nat. Mus. Civi. Storia Nat. Milano108, 155–160, 3 Figs., Milan
4. — (1985): Bryozoa from Ghana; a preliminary survey.—Koninkl. Mus. Mid.-Afrika. Zool. Wettensch. Ann.,238, 1–315, 23 Pls., 50 Figs., 7 Maps., 10 Tabs., Tervuren
5. Crisp, D. J. (1974): Factors influencing the settlement of marine invertebrate larvae.—InGrant, P. T. &Mackie, A. M. (ed.): Chemoreception in marine organisms.—177–265, 11 Figs., London (Academic Press)