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Author

Juan Guayasamin

The University of Kansas, United States of America

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5 articles by this author

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

Research Article

doi: 10.3897/zookeys.766.24523

14-06-2018

Unique: 4180 | Total: 7192

79-147

Reprint: € 20,20

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

Research Article

doi: 10.3897/zookeys.673.12108

12-05-2017

Unique: 9466 | Total: 16702

1-20

Reprint: € 5,90

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

Research Article

doi: 10.3897/zookeys.661.11224

15-03-2017

Unique: 2905 | Total: 7605

91-123

Reprint: € 10,50

Systematics of Nothopsini (Serpentes, Dipsadidae), with a new species of Synophis from the Pacific Andean slopes of southwestern Ecuador

Robert Pyron, Juan Guayasamin, Nicolas Peñafiel, Lucas Bustamante, Alejandro Arteaga

Research Article

doi: 10.3897/zookeys.541.6058

01-12-2015

Unique: 3199 | Total: 6049

109-147

Reprint: € 11,20

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

Research Article

doi: 10.3897/zookeys.108.1129

17-06-2011

Unique: 6436 | Total: 8319

73-97

Reprint: € 8,40

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