Fifty years after: A taxonomic revision of the amphibian species from the Ecuadorian biodiversity hotspot Abra de Zamora, with description of two new Pristimantis species

16694, 16697, 26325, 26330, 26351, 27033, 29248, 24 subadults: QCAZ 16670–72, 16674–78, 16680–94, 16697 collected at the type locality along with the holotype by Italo G. Tapia and Queti M. Tapia on 17 September 2001; QCAZ 26325–26, 26329–31, 26343, 26347, 26351–52, from Abra de Zamora (2800 m), boundary between Provincias Loja and Zamora Chinchipe, collected by Italo G. Tapia, Erik R. Wild, Andre´s Merino-Viteri, and Luis A. Coloma on 16 August 2003; QCAZ 26964–65, 27033, from Reserva Tapichalaca (2400 m), on road between Yangana and Valladolid, collected by David Kizirian and Juan C. Santos on 30 October 2000; QCAZ 29248, collected by Carlos Carrio´n-Bonilla and Paolo Piedrahita-Piedrahita on 18 Feb- ruary 2001. Remarks. It seems that the population of Pristimantis andinognomus from Abra de Zamora is a different species from the one from the type locality, Reserva Tapichalaca, and it needs a detailed revision. This species is common in the higher parts of Abra de Zamora, and, together with P. versicolor, represents the most abundant frog species in the area. The calls of the males were registered during each night of fieldwork at the site, regardless of weather conditions, and sometimes even during the day. More data is needed to clarify this species phylogenetic relationships and current distribution. Pristimantis vidua (Lynch, 1979) (Fig 8) Eleutherodactylus vidua Lynch, 1979 Eleutherodactylus (Eleutherodactylus) vidua: Lynch, 1996; Lynch and Duellman, 1997 Pristimantis vidua: Heinicke, Duellman, and Hedges, 2007

Pristimantis (Pristimantis) vidua: Hedges, Duellman, and Heinicke, 2008 Common English name. Mountain Crest Robber Frog Common Spanish name. Cutı´n viuda Fig 8. Color variation of Pristimantis vidua in life. A–F females: A. MUTPL 312, B. MUTPL 164, C. MUTPL 586, D. MUTPL 590, E. MUTPL 153, F. MUTPL 150; G–I males: G. MUTPL 495, H. MUTPL 496, I. MUTPL 148. Abra de Zamora (A, G, H), Bosque Protector Washapamba (B, E, F, I), Parque Nacional Podocarpus—Cajanuma (C, D). Most common coloration of this species is presented in A, G and H. https://doi.org/10.1371/journal.pone.0238306.g008 PLOS ONE Taxonomic revision of the amphibian species from Abra de Zamora PLOS ONE | https://doi.org/10.1371/journal.pone.0238306 September 10, 2020 16 / 59