- ↑ Boulenger,G.A. (1897) On little-known snakes from Natal., Ann. Mag. Nat. Hist. (6) 20: 374-376
- ↑ Günther, A. (1858) Catalogue of Colubrine snakes of the British Museum., London, I - XVI, 1 - 281
- ↑ 3.0 3.1 Smith, A. (1849) Illustrations of the Zoology of South Africa. 3 (Reptiles)., London, Smith, Elder & Co.
- ↑ 4.0 4.1 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