Keywords: natural science naturalscience animals amphibians frogs smithsonian probably public domain probablypublicdomain SI Neg. 91-14842. Date: 28-May-89...frog Centrolenella spinosa Family: Centrolenidae,glass frogs ..Credit: Carl C. Hansen (Smithsonian Institution) SI Neg. 91-14842. Date: 28-May-89...frog Centrolenella spinosa Family: Centrolenidae,glass frogs ..Credit: Carl C. Hansen (Smithsonian Institution) |