Tropical Pacific Medusa Lithograph by B. Meisel from drawings by A.G. Mayer for Agassiz and Mayer, Reports on the scientific results of the expedition to the tropical Pacific, in charge of Alexander Agassiz by the U.S. Fish Commision Steamer "Albatross", from August, 1899, to March, 1900, Commander Jefferson F. Moser, USN, comamanding. III. Medusae, (1902). Plate 2: 20 x 28.5 cm