Smith, G.R. and Lemos-Espinal, J.A. 2010. Observations of Amplexus and Oviposition in Ollotis [Bufo] occidentalis in the Río Salado, Puebla, Mexico. Reptiles & Amphibians. 17, 1 (Mar. 2010), 46–47. DOI:https://doi.org/10.17161/randa.v17i1.16066.