↑Boulenger, George A. (1890) The Fauna of British India, Including Ceylon and Burma. Reptilia and Batrachia., Taylor & Francis, London, xviii, 541 pp.
↑ 3.03.1Gray, J. E. (1853) Descriptions of some undescribed species of reptiles collected by Dr. Joseph Hooker in the Khassia Mountains, East Bengal, and Sikkim Himalaya., Ann. Mag. Nat. Hist. (2) 12: 386 - 392