﻿AbstractA molecular phylogeny of the Neotropical snail-eating snakes (tribeDipsadiniBonaparte, 1838) is presented that includes 60 of the 133 species currently recognized. There is morphological and phylogenetic support for four new species ofSibonFitzinger, 1826 and one ofDipsasLaurenti, 1768, which are described here based on their unique combination of molecular, meristic, and color pattern characteristics.PlesiodipsasHarvey et al., 2008is designated as a junior synonym ofDipsasand additional evidence is presented to support the transfer of the genusGeophisWagler, 1830 to the tribeDipsadini. Two of the subspecies ofS.nebulatus(Linnaeus, 1758) are elevated to full species status. Insight into additional undescribed cryptic diversity within theS.nebulatusspecies complex is provided. Evidence that supports the existence of an undescribed species previously confused withD.temporalisis provided, as well as the first country record ofS.ayerbeorumVera-Pérez, 2019 in Ecuador with a comment on the ontogenetic variation of the latter. Finally, photographs of Colombian, Ecuadorian, and Panamanian snail-eating snakes are provided.