British ascophoras bryozoans keys and notes for the identification of the species
Hayward, P. J.
Ryland, John Stanley.
Estuarine and Brackish-Water Sciences Association.
London Academic Press for the Linnean Society of London and the Estuarine and Brackish-water Sciences Association
1979
Bibliography: p.303-306. - Includes index
Ascophora.
Cheilostomata