Manuel d'actinologie ou de zoophytologie, Paris, F.G. Levrault, 1834-1836, corals, sea anemones, cnidaria, ctenophora, This illustration showcases various species of echinoderms, prominently featuring the holothurids, commonly known as sea cucumbers. Each specimen is meticulously labeled and depicted in a detailed anatomical style, highlighting their unique shapes and structures. The drawing includes representations of the holothurian body forms, detailing textures and appendages. The intricate designs capture both the diversity and complexity of these ocean dwellers, providing insight into their morphology and ecological significance.