African clawed frog, Xenopus laevis 1, and Surinam toad, Pipa pipa 2. Handcolored engraving by Forget after an illustration by Oudart from Charles d'Orbigny's "Dictionnaire Universel d'Histoire Naturelle" (Universal Dictionary of Natural History), Paris, 1849.

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Photo credit: © Florilegius / Alamy / Afripics
License: Licensed
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Keywords: 19th, african, americana, amphibian, capensis, century, charles, clawed, dactylethra, dictionary, dorbigny, engraving, forget, frog, handcoloured, herpetology, history, illustration, laevis, natural, oudart, pipa, surinam, toad, universal, xenopus