Abstract

Three new species of rainfrogs of the genus Pristimantis are described from a large mesa (tepui), the Wokomung Massif, of the Pakaraima Mountains in west-central Guyana. Pristimantis dendrobatoides n. sp. is known from 1385–1411 m, P. jester n. sp. from 1411–1650 m, and P. saltissimus n. sp. from 698–1560 m elevation. The three species are syntopic at elevations around 1400 m in cloud forest. All three taxa are unusual among species of Pristimantis in the production of malodorous and distasteful skin secretions when handled, conditions that are atypical for the genus. Two of the new species (P. dendrobatoides, P. jester) also have bright, red skin coloration, and the third (P. saltissimus) is either cryptically colored or brightly colored.

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