Biologia Centrali-Americana, London, 1879-1915. Archaeology, Botany, Central America, Zoology, Scientific Expeditions, Description and Travel, This illustration displays a series of colorful frog species, arranged in a grid format. The top row features three distinct frogs, each showcasing vibrant patterns and colors: the first exhibits bold red and black markings, the second has striking yellow and black designs, and the third displays a mix of green and yellow hues. The middle row contains three frogs with more subdued yet unique patterns, while the bottom row includes two examples: one is predominantly golden with darker spots, and the other has a muted coloration. In the center of the arrangement, a small triangular shape suggestive of an insect or additional detail is included. Each frog is labeled with a letter for identification purposes, illustrating the diversity of species within this fascinating group