Keywords: natural science naturalscience animals amphibians frogs smithsonian probably public domain probablypublicdomain SI Neg. 91-13506. Date: 06-Apr-89... Colostethus flotator ..Credit: Carl C. Hansen (Smithsonian Institution) SI Neg. 91-13506. Date: 06-Apr-89... Colostethus flotator ..Credit: Carl C. Hansen (Smithsonian Institution) |