Catalogue of marine Polyzoa, London, Printed by the order of the Trustees, 1852-1875, identification, catalogs, classification, Bryozoa, Cheilostomata, geographical distribution, Cyclostomata Bryozoa, The illustration features various detailed diagrams of marine organisms, specifically focusing on two species: C. margaritatacea and C. carinata. Each figure showcases distinct anatomical features, with labels identifying each specimen. The diagrams highlight intricacies such as shell structure, internal anatomy, and morphological variations. The artwork emphasizes precision and scientific observation, providing insight into the classification and study of these marine species. Various perspectives and cross-sections are presented to enhance understanding of their biology.