Dorsal (A, D), lateral (B, E), and ventral (C, F) views of the holotype (MNRJ 27562; Figs A–C) and paratype (MNHN-RA-2023.0001; D–F) of Siagonodon exiguum sp. nov.

  Part of: Martins A, Folly M, Ferreira GN, Garcia da Silva AS, Koch C, Fouquet A, Machado A, Lopes RT, Pinto R, Rodrigues MT, Passos P (2023) An evolutionary paradox on threadsnakes: Phenotypic and molecular evidence reveal a new and remarkably polymorphic species of Siagonodon (Serpentes: Leptotyphlopidae: Epictinae) from Amazonia. Vertebrate Zoology 73: 345-366.