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A new minute Pristimantis (Amphibia: Anura: Strabomantidae) from the Andes of southern Ecuador

We describe a new rainfrog species (Pristimantis), from the wetland complex Oña, Nabón, Saraguro and Yacuambi, in the Andes of southern Ecuador, at altitudes ranging between 3000–3400 m a.s.l. Pristimantis tiktik sp. nov. is a small frog, displaying sexual dimorphism (the males with dorsum of variou...

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Autores principales: Székely, Paul, Eguiguren, Juan Sebastián, Székely, Diana, Ordóñez-Delgado, Leonardo, Armijos-Ojeda, Diego, Riofrío-Guamán, María Lorena, Cogălniceanu, Dan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6114709/
https://www.ncbi.nlm.nih.gov/pubmed/30157209
http://dx.doi.org/10.1371/journal.pone.0202332
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author Székely, Paul
Eguiguren, Juan Sebastián
Székely, Diana
Ordóñez-Delgado, Leonardo
Armijos-Ojeda, Diego
Riofrío-Guamán, María Lorena
Cogălniceanu, Dan
author_facet Székely, Paul
Eguiguren, Juan Sebastián
Székely, Diana
Ordóñez-Delgado, Leonardo
Armijos-Ojeda, Diego
Riofrío-Guamán, María Lorena
Cogălniceanu, Dan
author_sort Székely, Paul
collection PubMed
description We describe a new rainfrog species (Pristimantis), from the wetland complex Oña, Nabón, Saraguro and Yacuambi, in the Andes of southern Ecuador, at altitudes ranging between 3000–3400 m a.s.l. Pristimantis tiktik sp. nov. is a small frog, displaying sexual dimorphism (the males with dorsum of various shades of gray, brown, orange or green and a whitish or pinkish yellow venter; females with brownish gray or gray dorsum and a reticulated white and black venter), with SVL ranging between 19.7–20.4 mm in females (n = 3) and 16.1–18.4 mm in males (n = 6). The skin on dorsum is tuberculated, that on venter is coarsely areolate, dorsolateral folds are absent, tympanic membrane is absent but the tympanic annulus is evident, cranial crests are absent, discs on fingers just slightly expanded, heel is lacking enlarged tubercles, inner edge of tarsus is bearing a long fold, Toe V is slightly longer than Toe III and the iris coloration is bronze with fine black reticulations. The males have a large subgular vocal sac that extends onto the chest and vocal slits but lack nuptial pads. The unique advertisement call consists of long duration series of periodically repeated clicks: “tik”. Molecular analyses place the new species in the recently resurrected P. orestes group, as the sister species of the assemblage that contains P. bambu, P. mazar, P. simonbolivari and an undescribed species.
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spelling pubmed-61147092018-09-17 A new minute Pristimantis (Amphibia: Anura: Strabomantidae) from the Andes of southern Ecuador Székely, Paul Eguiguren, Juan Sebastián Székely, Diana Ordóñez-Delgado, Leonardo Armijos-Ojeda, Diego Riofrío-Guamán, María Lorena Cogălniceanu, Dan PLoS One Research Article We describe a new rainfrog species (Pristimantis), from the wetland complex Oña, Nabón, Saraguro and Yacuambi, in the Andes of southern Ecuador, at altitudes ranging between 3000–3400 m a.s.l. Pristimantis tiktik sp. nov. is a small frog, displaying sexual dimorphism (the males with dorsum of various shades of gray, brown, orange or green and a whitish or pinkish yellow venter; females with brownish gray or gray dorsum and a reticulated white and black venter), with SVL ranging between 19.7–20.4 mm in females (n = 3) and 16.1–18.4 mm in males (n = 6). The skin on dorsum is tuberculated, that on venter is coarsely areolate, dorsolateral folds are absent, tympanic membrane is absent but the tympanic annulus is evident, cranial crests are absent, discs on fingers just slightly expanded, heel is lacking enlarged tubercles, inner edge of tarsus is bearing a long fold, Toe V is slightly longer than Toe III and the iris coloration is bronze with fine black reticulations. The males have a large subgular vocal sac that extends onto the chest and vocal slits but lack nuptial pads. The unique advertisement call consists of long duration series of periodically repeated clicks: “tik”. Molecular analyses place the new species in the recently resurrected P. orestes group, as the sister species of the assemblage that contains P. bambu, P. mazar, P. simonbolivari and an undescribed species. Public Library of Science 2018-08-29 /pmc/articles/PMC6114709/ /pubmed/30157209 http://dx.doi.org/10.1371/journal.pone.0202332 Text en © 2018 Székely et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Székely, Paul
Eguiguren, Juan Sebastián
Székely, Diana
Ordóñez-Delgado, Leonardo
Armijos-Ojeda, Diego
Riofrío-Guamán, María Lorena
Cogălniceanu, Dan
A new minute Pristimantis (Amphibia: Anura: Strabomantidae) from the Andes of southern Ecuador
title A new minute Pristimantis (Amphibia: Anura: Strabomantidae) from the Andes of southern Ecuador
title_full A new minute Pristimantis (Amphibia: Anura: Strabomantidae) from the Andes of southern Ecuador
title_fullStr A new minute Pristimantis (Amphibia: Anura: Strabomantidae) from the Andes of southern Ecuador
title_full_unstemmed A new minute Pristimantis (Amphibia: Anura: Strabomantidae) from the Andes of southern Ecuador
title_short A new minute Pristimantis (Amphibia: Anura: Strabomantidae) from the Andes of southern Ecuador
title_sort new minute pristimantis (amphibia: anura: strabomantidae) from the andes of southern ecuador
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6114709/
https://www.ncbi.nlm.nih.gov/pubmed/30157209
http://dx.doi.org/10.1371/journal.pone.0202332
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