Manuel d'actinologie ou de zoophytologie, Paris, F.G. Levrault, 1834-1836, corals, sea anemones, cnidaria, ctenophora, The illustration features three distinct views of a marine creature, specifically a type of sea urchin known as a 'spatangus.' The upper section displays a frontal view showcasing its symmetrical shape and the intricate pattern of spines. The middle section offers a closer look at the detailed surface texture, highlighting numerous small pores and features that contribute to its physical characteristics. The lower section presents a different perspective, further emphasizing the unique structural details that define this species. Each view serves to illustrate the fascinating morphology of the spatangus, reflecting its adaptive traits in marine environments.