Oval frog (Engystoma ovale) and Green toad (Bufo viridis) illustrated by Charles Dessalines D' Orbigny (1806-1876)....

Oval frog (Engystoma ovale) and Green toad (Bufo viridis) illustrated by Charles Dessalines D' Orbigny (1806-1876). Digitally enhanced from our own 1892 edition of Dictionnaire Universel D'histoire Naturelle.

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