Specimen of the Glassfrog <i>Espadarana Callistomma</i> (IMAGE)

Proceedings of the National Academy of Sciences

Specimen of the Glassfrog <i>Espadarana Callistomma</i>

Caption

Specimen of the glassfrog Espadarana callistomma from the tropical rainforests in the Chocó region of Ecuador. Large accumulations of a blue-green biliverdin binding serpin can be seen under the skin of the animals and are highly conspicuous in the humeral spines -osseous projections on the forelimbs- of the species.

Credit

Image credit: Santiago R. Ron

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