^Dunn, Emmett R. & Bailey, Joseph R. (1939) Snakes from the uplands of the Canal Zone and of Darien., Bulletin of the Museum of Comparative Zoölogy 86 (1): 1-22
^ abBisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D. (red.) (). „Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist”. Species 2000: Reading, UK. Accesat în .Mentenanță CS1: Nume multiple: lista autorilor (link)
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