Keywords: nature animals amphibians frogs smithsonian probably public domain probablypublicdomain outdoor SI Neg. 91-14839. Date: na...Frog Centrolenella spinosa Family: Centrolenidae,glass frogs ..Credit: Carl C. Hansen (Smithsonian Institution) SI Neg. 91-14839. Date: na...Frog Centrolenella spinosa Family: Centrolenidae,glass frogs ..Credit: Carl C. Hansen (Smithsonian Institution) |