Proceedings of the Zoological Society of London London Academic Press 1833-1965 periodicals zoology red uakari monkey brachyurus rubicundus Joseph Smith, This illustration features a Brachyurus rubicundus, commonly known as the red-headed capuchin monkey. The primate is depicted in a slightly crouched position as it navigates a branch, showcasing its distinctive reddish-brown fur and striking facial features, including its prominent eyes and expressive expression. The detailed rendering highlights the texture of the monkey's fur and the natural environment, emphasizing the creature's agility and curious nature. Below the illustration, the scientific name is presented, indicating its classification in the animal kingdom.