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Representative dendrobatid frogs that contain PTX (+)-251D in their skin (12). (Upper Left) D. pumilio from Isla Cayo Agua, Bocas, Panama. (Upper Right) E. tricolor from Azuay, Ecuador. (Lower Left) Minyobates bombetes from Valle, Colombia. (Lower Right) P. aurotaenia from Chocó, Colombia. The sizes are not to scale.
