A sixteenth-century scientific study of the opah fish by Dutch chronicler Adriaen Coenen, featuring detailed ink work and period annotations.

This drawing by Adriaen Coenen depicts the opah, or Lampris guttatus, a deep-sea fish known for its distinct, rounded body shape. Coenen, a Dutch fisherman and chronicler, produced this work as part of his extensive documentation of marine life. The image captures the specimen with a focus on its anatomical features, including the prominent dorsal and pectoral fins, and the characteristic spotted pattern across its flanks.

The composition is typical of sixteenth-century natural history studies, where the subject is presented in isolation against a neutral background. Coenen employs a delicate ink wash to suggest the volume of the fish, while the surrounding handwritten annotations provide context regarding the specimen's capture and physical description. These notes, written in a mix of Dutch and Latin, reflect the era's approach to empirical observation, where the artist acted as both recorder and scientist.

The line quality is precise, demonstrating a clear intent to document the creature for future reference rather than for purely aesthetic purposes. The paper shows signs of age, with a warm, aged tone that complements the monochromatic ink work. This piece offers a glimpse into the early modern fascination with the natural world, specifically the mysterious inhabitants of the North Sea. It remains a valuable record of how marine biology was observed and catalogued before the advent of modern photography. The work is part of the 'Visboek', a significant manuscript collection that documents the maritime culture and natural history of the Netherlands during the sixteenth century.