Title of Presentation or Performance

A New Terrestrial-Breeding Frog (Strabomantidae: Pristimantis) from Northern Peru

Presenter and Advisor Information

Anna Poulton, Illinois Wesleyan University

Type of Submission (Archival)

Event

Faculty Advisor

Edgar Lehr

Expected Graduation Date

2019

Location

Center for Natural Sciences, Illinois Wesleyan University

Start Date

4-21-2018 9:00 AM

End Date

4-21-2018 10:00 AM

Disciplines

Education

Abstract

Nearly 700 species belong to Strabomantidae, a family of terrestrial-breeding, small to medium sized frogs. Of these, 516 are of the genus Pristimantis. A series of frogs collected during an expedition in a montane forest between 2843 and 3013 m elevation in the Region Lambayeque contained a new species of frog of the genus Pristimantis. This frog has female snout-vent lengths between 24.2–26.1 mm (n = 4) and male snout-vent lengths between 17.2–18.7 mm (n = 2), and a coloration from pale brown to dark brown. It differs from its congeners by having males without vocal slits and nuptial pads, ulnar tubercles fused to a ridge, and fingers and toes with narrowly rounded discs. The new species is most similar to Pristimantis chimu, from which it differs by lacking a cranial crest and tarsal tubercles. Future work will include molecular data to analyze phylogenetic relationships of this species.

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Apr 21st, 9:00 AM Apr 21st, 10:00 AM

A New Terrestrial-Breeding Frog (Strabomantidae: Pristimantis) from Northern Peru

Center for Natural Sciences, Illinois Wesleyan University

Nearly 700 species belong to Strabomantidae, a family of terrestrial-breeding, small to medium sized frogs. Of these, 516 are of the genus Pristimantis. A series of frogs collected during an expedition in a montane forest between 2843 and 3013 m elevation in the Region Lambayeque contained a new species of frog of the genus Pristimantis. This frog has female snout-vent lengths between 24.2–26.1 mm (n = 4) and male snout-vent lengths between 17.2–18.7 mm (n = 2), and a coloration from pale brown to dark brown. It differs from its congeners by having males without vocal slits and nuptial pads, ulnar tubercles fused to a ridge, and fingers and toes with narrowly rounded discs. The new species is most similar to Pristimantis chimu, from which it differs by lacking a cranial crest and tarsal tubercles. Future work will include molecular data to analyze phylogenetic relationships of this species.