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1 Allen, E. R. 1938. Notes on Florida water snakes. Proceedings of the Florida Academy of Sciences 3:101104.
2 Cliburn, J. W. 1960. The phylogeny and zoogeography of North American Natrix. Dissertation, University of Alabama, Tuscaloosa, Alabama, USA. 319pp.
3 Duellman, W. E., and A. Schwartz. 1958. Amphibians and reptiles of southern Florida. Bulletin of the Florida State Museum, Biological Sciences 3:181324.
4 Goff, C. C. 1936. Distribution and variation of a new subspecies of water snake, Natrix cyclopion floridana, with a discussion of its relationships. Occasional Papers of the Museum of Zoology, University of Michigan No. 327. 9pp.
5 Mara, W. P. 1995. Water snakes of North America. T.F.H., Neptune City, New Jersey, USA. 64pp.
6 Neill, W. T. 1963. Polychromatism in snakes. Quarterly Journal of the Florida Academy of Sciences 26:194216.
7 Sanderson, W. E. 1993. Additional evidence for the specific status of Nerodia cyclopion and Nerodia floridana (Reptilia, Colubridae). Brimleyana 19:8394.
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