↑Cope, E.D. (1893) Notes on some snakes from tropical America lately living in the collection of the Zoologicla Society of Philadelphia., Proc. Acad. Nat. Sci. Philadelphia 1893: 429-435
↑ 3.03.1Duméril, A.M.C., G. BIBRON & A.H.A. DUMÉRIL (1854) Erpétologie générale ou Histoire Naturelle complète des Reptiles. Vol. 7 (partie 1)., Paris, xvi + 780 S.
↑ 4.04.1Bisby 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)