Gray, J.E. 1839. Reptiles. pp. 93–94, pls. 29–32 In: Richardson, J., Vigors, N.A., Lay, G.T., Bennett, E.T., Owen, R., Gray, J.E., Buckland, W. & Sowerby, G.B. (Eds.). The zoology of Captain Beechey’s voyage; compiled from the collections and notes made by Captain Beechey, the officers and naturalist of the expedition, during a voyage to the Pacific and Behring’s Straits performed in His Majesty’s ship Blossom under the command of Captain F.W. Beechey, R.N., F.R.S., &c. &c. in the years 1825, 26, 27, and 28. Henry G. Bohn: London. BHL
