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Pyburn, W.F. 1980. An unusual anuran larva from the Vaupés region of southeastern Colombia. Papéis Avulsos de Zoologia. 33, 1-25 (1979-1980) (Oct. 1980), 231–238. DOI:https://doi.org/10.11606/0031-1049.1980.33.p231-238.