| molecular phylogeny of atractus (serpentes, dipsadidae), with emphasis on ecuadorian species and the description of three new taxa. | we present a molecular phylogeny of snake genus atractus, with an improved taxon sampling that includes 30 of the 140 species currently recognized. the phylogenetic tree supports the existence of at least three new species in the pacific lowlands and adjacent andean slopes of the ecuadorian andes, which we describe here. a unique combination of molecular, meristic and color pattern characters support the validity of the new species. with the newly acquired data, we propose and define the atractu ... | 2017 | 28769604 |