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 a detailed study of anatomical structures, showcasing a series of elongated, tubular forms. The top section depicts a grouping of these structures, with each one distinctly outlined, displaying intricate details of their surfaces and connections. Below, a similar arrangement is presented, emphasizing the longitudinal view of the same forms, highlighting their linear alignment and structural variations. The meticulous shading and fine lines contribute to a comprehensive understanding of the subjects, suggesting a focus on biological or botanical studies.