[17] Erpétologie genéral, par MM. Dumeril et Bibron, tome i. p. 136. Paris, 1844.
[18] Schlangen und Schlangen fiend, par II. O. Lenz. Gotha, 1832.
[19] Sea Snakes: Pelagic Serpents, by Dr. Theo. E. Cantor. London, 1842. Zoological Society’s Transactions, 1841.
[20] See Field newspaper, September and October 1862. London.
[21] Zoology of New York, by J. E. De Kay. Albany, 1844.
[22] Natural History of New York. 5 vols. New York, 1842.
[23] North American Herpetology. Phil., U. S., 1842.
[24] History of Carolina, by Jno. Lawson, 1709.
[25] Balfour’s British India; also the Cyclopedia of India.
[26] See Medical Times, 1872, p. 730.