An evolutionary paradox on threadsnakes: phenotypic and molecular evidence reveal a new and remarkably polymorphic species of Siagonodon (Serpentes: Leptotyphlopidae: Epictinae) from Amazonia - Martins, Angele; Folly, Manuella; Ferreira, Guilherme Nunes; Silva, Antônio Samuel Garcia da; Koch, Claudia; Fouquet, Antoine; Machado, Alessandra; Lopes, Ricardo Tadeu; Pinto, Roberta; Rodrigues, Miguel Trefaut; Passos, Paulo (Vertebrate Zoology, 2023)