- ↑ Utiger, Urs, Notker Helfenberger, Beat Schätti, Catherine Schmidt, Markus Ruf and Vincent Ziswiler (2002) Molecular systematics and phylogeny of Old World and New World ratsnakes, Elaphe Auct., and related genera (Reptilia, Squamata, Colubridae)., Russ. J. Herpetol. 9 (2): 105-124.
- ↑ Frank, Norman & Ramus, Erica (1995) A Complete Guide to Scientific and Common Names of Reptiles and Amphibians of the World., Pottsville: N G Publishing Inc., 377 S.
- ↑ Müller, F. (1878) Über einige seltene und neue Reptilien aus Guatemala., Verh. Naturf. Ges. Basel, 6: 390-411
- ↑ Duméril, 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.
- ↑ 5.0 5.1 5.2 Bisby 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)
- ↑ TIGR Reptile Database . Uetz P. , 2 Oktubre 2007
