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File:Toad Mountain Harlequin Frog - Atelopus certus Barbour, 1923 female (4745510791).jpg - Wikimedia Commons
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The Reptiles and Amphibians of the Isle of Pines by Thomas Barbour - 1916 - from Buteo Books (SKU: rbett35B84)
Barbour Amphibian Jacke, Heritage Collection, Spey Fishing in Niedersachsen - Uelzen | eBay Kleinanzeigen
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Systematics, distribution, and bibliography of the frog Leptodactylus insularum Barbour, 1906 (Amphibia: Leptodactylidae)
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