↑ 2.02.12.2Hartweg, N., & OLIVER, J. A. (1938) A contribution to the herpetology of the isthmus of Tehuantepec. III. Three new snakes from the Pacific slope., Occ. Pap. Mus. Zool. Univ. Michigan No. 390: 1-8
↑ 3.03.1Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D. (ed.) (2011). "Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist". Species 2000: Reading, UK. Ginkuhà 24 Septyembre 2012.CS1 maint: multiple names: authors list (link) CS1 maint: extra text: authors list (link)