Catalogue of Marine Polyzoa. London, Printed by the order of the Trustees, 1852-1875. Identification, Catalogs, Classification, Bryozoa, Cheilostomata, Geographical Distribution, Cyclostomata Bryozoa, An illustration featuring various structures of the Acamarchis flabellata, a type of freshwater algae. The composition includes labeled figures that showcase different morphological aspects such as branching patterns, reproductive features, and distinct cellular arrangements. Detailed line work highlights the intricate forms of the algae, providing a clear visual reference for scientific study and identification. Labels identify multiple figures, enhancing the educational purpose of the illustration for botanical research.