**3. Results**

## *3.1. Molecular Phylogenetic Analysis*

We recovered a phylogenetic tree (Figure 1) that was congruen<sup>t</sup> with previous analyses [16,21], and supported a unique history of divergence of the new species. There was strong support for placing the new species in a clade containing species of *Noblella* distributed in southern Peru as well as several species of *Psychrophrynella*. According to this analysis, the new species is most closely related to *Noblella pygmaea* and to an undescribed species (*Noblella* sp. R in [23]).

**Figure 1.** Phylogeny. Bayesian maximum clade-credibility tree for species included in this study based on a 2571 bp concatenated partitioned dataset analyzed in MrBayes (posterior probabilities indicated at each node).
