Adult male holotype MZUTI 4330 (a) and adult male paratopotype (b) of Atractus cerberusMZUTI 5108.

 
 
  Part of: Arteaga A, Mebert K, Valencia JH, Cisneros-Heredia DF, PeƱafiel N, Reyes-Puig C, Vieira-Fernandes JL, Guayasamin JM (2017) Molecular phylogeny of Atractus (Serpentes, Dipsadidae), with emphasis on Ecuadorian species and the description of three new taxa. ZooKeys 661: 91-123. https://doi.org/10.3897/zookeys.661.11224