Mémoires sur les animaux sans vertèbres, Paris, G. Dufour, 1816, invertebrates, Woodshole, A collection of intricate scientific illustrations depicting various species of simple marine organisms. The detailed drawings showcase the structures of a creature known as 'Cynthia' along with other related forms, labeled with numerical references for clarity. Each organism is presented with an emphasis on its anatomical features, including the arrangement of body parts, textures, and proportions, reflecting the study of their biological characteristics. The illustrations serve as a visual exploration of marine life, capturing the complexity and diversity within the classification of these species.