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 series of detailed scientific drawings depicting various forms of the genus Cythere. Each figure is labeled with numbers for reference. - **Fig. 1** and **Fig. 2** showcase the exterior structures of Cythere aurita, highlighting the curved and ornate features typical of this species. - **Fig. 3** presents a close-up view of the frontal aspect, emphasizing the intricate patterns and textures of the shell. - **Fig. 4** and **Fig. 5** depict Cythere amphora, with illustrations demonstrating the distinct oval shape and unique ribbing characteristic of its shell. Overall, the drawings aim to provide a clear