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By: Arteaga, Alejandro - Mebert, Konrad - Valencia, Jorge - Cisneros-Heredia, Diego F. - Peñafiel, Nicolas - Reyes, Carolina - Vieira-Fernandes, José L. - Guayasamin, Juan M.Type: ArticleIn: ZooKeysVolume: 661Series:Issue:Date: 2017Page Range: 91-123Publication Info: Pensoft Publishers 2017Subjects: Atractus Biodiversity Ecuador groundsnakes new species Pacific lowlands Phylogeny