This is a vintage scientific illustration depicting various stages or views of Stauromedusae, specifically Tessera and Depastrella jellyfish. The illustration is arranged in a grid-like pattern with twelve numbered depictions. The jellyfish are shown in different orientations and cross-sections, revealing their internal structures. They have a bell-shaped body with tentacles extending from the base. Some depictions show the jellyfish in profile, while others are top-down views or cross-sections, showcasing the internal organs and digestive system. The color palette is muted, with shades of green, yellow, and brown dominating the illustrations. The background is a pale yellow, providing contrast to the jellyfish. The illustrations are highly detailed, with intricate lines and shading used to depict the jellyfish's anatomy. The text at the top and bottom of the illustration indicates the scientific name and species of the jellyfish, as well as the plate number and publication details. The overall style of the illustration is reminiscent of 19th-century scientific illustrations, with a focus on accuracy and detail.