Abstract
We describe a small frog of the genus Pristimantis inhabiting bromeliads (snout-vent length 20.3‑23.3 mm in females, 16.1‑17.4 mm in males), from a remote sandstone plateau of the Cordillera del Condor, in southeastern Ecuador, with an altitudinal range of 2,045‑2,860 m. A phylogeny based on sequences of DNA (mitochondrial and nuclear genes) supports inclusion in the P. orestes group and suggests an undescribed Pristimantis from the southern slope of eastern Ecuador as the closest taxon. The new species differs from its congeners in Ecuador by having predominantly black dorsal and ventral coloration; comprehensive and robust palmar surface with stubby fingers; presence of a deep and wide groove from the anterior base of finger I to the rear base of the palmar tubercle; subarticular divided tubers, enlarged supernumerary small granules and tubercles. All individuals were found in terrestrial bromeliads. The calls are short, frequency modulated, comprising of a note 5‑15 ms in duration. Insects represented 80% of the diet of the new species.
Highlights
We describe a small frog of the genus Pristimantis inhabiting bromeliads, from a remote sandstone plateau of the Cordillera del Condor, in southeastern Ecuador, with an altitudinal range of 2,045‐2,860 m
Las ranas cutines de la familia Craugastoridae (Pyron & Wiens, 2011; Padial et al, 2014), restringidas al nuevo mundo, presentan un sistema de reproducción sofisticado ya que no requieren cuerpos de agua (Lynch & Duellman, 1997) y se encuentran entre los anfibios más diversos del planeta (Frost, 2016)
En las cercanías del hábitat de Pristimantis muranunka se registró a la rana de torrente Colomascirtus condor, la rana venenosa Hyloxalus mystax y varias especies de cutines aún no determinados a nivel específico Pristimantis spp
Summary
La terminología del género sigue a Hedges et al (2008) y para la familia seguimos a Pyron & Wiens (2011) y Padial et al (2014). Los especímenes colectados fueron sacrificados según las recomendaciones de Chen & Combs (1999) y preservados según los protocolos de Simmons (2002)
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