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Juan Manuel Guayasamin        
Universidad San Francisco de Quito USFQ
Quito, Ecuador
7 articles by this author
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Research Article
Two new species of terrestrial frogs of the Pristimantis gladiator complex (Anura, Strabomantidae) from the Ecuadorian Andes, with insights on their biogeography and skull morphology
    Juan Pablo Reyes-Puig,     Miguel Urgilés-Merchán,     Daniela Franco-Mena,     Juan M. Guayasamin,     Diego Batallas,     Carolina Reyes-Puig
10.3897/zookeys.1180.107333
 26-09-2023
 Unique: 2232 | Total: 3777  | Access Period:
 Reprint: € 14,70
 257-293
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Research Article
Leaving no stone unturned: three additional new species of Atractus ground snakes (Serpentes, Colubridae) from Ecuador discovered using a biogeographical approach
    Alejandro Arteaga,     Amanda Quezada, Jose Vieira,     Juan M. Guayasamin
10.3897/zookeys.1121.89539
 15-09-2022
 Unique: 2852 | Total: 3837  | Access Period:
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 175-210
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Research Article
Systematics of South American snail-eating snakes (Serpentes, Dipsadini), with the description of five new species from Ecuador and Peru
    Alejandro Arteaga,     David Salazar-Valenzuela,     Konrad Mebert, Nicolás Peñafiel, Gabriela Aguiar,     Juan C. Sánchez-Nivicela,     R. Alexander Pyron, Timothy J. Colston,     Diego F. Cisneros-Heredia, Mario H. Yánez-Muñoz,     Pablo J. Venegas,     Juan M. Guayasamin,     Omar Torres-Carvajal
10.3897/zookeys.766.24523
 14-06-2018
 Unique: 9503 | Total: 17055  | Access Period:
 Reprint: € 24,30
 79-147
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Research Article
A marvelous new glassfrog (Centrolenidae, Hyalinobatrachium) from Amazonian Ecuador
    Juan M. Guayasamin,     Diego F. Cisneros-Heredia,     Ross J. Maynard, Ryan L. Lynch, Jaime Culebras, Paul S. Hamilton
10.3897/zookeys.673.12108
 12-05-2017
 Unique: 14582 | Total: 25993  | Access Period:
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 1-20
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Research Article
Molecular phylogeny of Atractus (Serpentes, Dipsadidae), with emphasis on Ecuadorian species and the description of three new taxa
    Alejandro Arteaga,     Konrad Mebert, Jorge H. Valencia,     Diego F. Cisneros-Heredia, Nicolás Peñafiel,     Carolina Reyes-Puig, José L. Vieira-Fernandes,     Juan M. Guayasamin
10.3897/zookeys.661.11224
 15-03-2017
 Unique: 5644 | Total: 12882  | Access Period:
 Reprint: € 13,50
 91-123
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Research Article
Systematics of Nothopsini (Serpentes, Dipsadidae), with a new species of Synophis from the Pacific Andean slopes of southwestern Ecuador
    R. Alexander Pyron,     Juan M. Guayasamin, Nicolás Peñafiel, Lucas Bustamante,     Alejandro Arteaga
10.3897/zookeys.541.6058
 01-12-2015
 Unique: 5567 | Total: 12015  | Access Period:
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 109-147
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Research Article
A new species of Andean toad (Bufonidae, Osornophryne) discovered using molecular and morphological data, with a taxonomic key for the genus
Diego Paez,     Juan Guayasamin, Mario Yanez
10.3897/zookeys.108.1129
 17-06-2011
 Unique: 8244 | Total: 11389  | Access Period:
 Reprint: € 11,10
 73-97
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