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Nerodia floridana (GOFF, 1936)

IUCN Red List - Nerodia floridana - Least Concern, LC

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Higher TaxaColubridae (Natricinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common NamesE: Florida Green Water Snake 
SynonymNatrix cyclopion floridana GOFF 1936
Natrix cyclopion floridana — KLUGE 1984
Nerodia cyclopion floridana — MEHRTENS 1987: 155
Nerodia floridana — CONANT & COLLINS 1991: 148
Nerodia floridana — CROTHER 2000: 67
Nerodia floridana — WALLACH et al. 2014: 484 
DistributionUSA (S South Carolina, Florida, S/NE Georgia, Alabama)

Type locality: “near Leesburg, Florida, at the Alsa-Brook Prairie between Lake Griffin and Lake Yale"  
TypesHolotype: UMMZ 77229 
DiagnosisDiagnosis: Distinguished from N. c. cyclopion by having the belly predominantly yellow or white, scale rows 29 in males and 31 in females, and caudals averaging 82 in males and 73 in females [Clay 1938: 177]. 
EtymologyNamed after the type locality. 
  • Burbrink FT, Futterman I. 2019. Female‐ biased gape and body-size dimorphism in the New World watersnakes (tribe: Thamnophiini) oppose predictions from Rensch's rule. Ecol Evol. 00:1–10
  • BURGESS, KAMERON; SAMANTHA DILLON & KEVIN M. ENGE. 2022. Geographic distribution: NERODIA FLORIDANA (Florida Green Watersnake). USA: FLORIDA: Santa Rosa Co. Herpetological Review 53 (2): 264.
  • Camper, Jeffrey D. 2019. The Reptiles of South Carolina. University of South Carolina Press, 288 pp. [review in Copeia 107 (3): 590, 2019] - get paper here
  • Conant,R. & Collins,J.T. 1991. A Field Guide to Reptiles and Amphibians of Eastern/Central North America, 3rd ed. Houghton Mifflin (Boston/New York), xx + 450 p.
  • Crother, B. I. (ed.) 2012. Standard Common and Current Scientific Names for North American Amphibians, Turtles, Reptiles, and Crocodilians, Seventh Edition. Herpetological Circular 39: 1-92
  • Durso, A.M., Smith, L., Long, S. & Lott, R. 2017. Nerodia floridana (Florida Green Watersnake) Predation. Herpetological Review 48 (4): 863-864 - get paper here
  • Enge, Kevin M. 2009. Venomous and non-venomous snakes of Florida. Publication of the Florida Fish & Wildlife Conservation Commission. 16 pp.
  • Ernst, C.H., & Barbour, R.W. 1989. Snakes of eastern North America. George Mason Univ. Press, Fairfax, VA 282 pp.
  • Gibbons, J. W. & Mike Dorcas 2004. North American Water Snakes. University of Oklahoma Press, 496 pp.
  • Goff,C.C. 1936. Distribution and variation of a new subspecies of water snake, Natrix cyclopion floridana. Occasional Papers of the Museum of Zoology University of Michigan, (327): 1-9 + 1 plate - get paper here
  • Guyer, Craig; Mark A. Bailey, and Robert H. Mount 2018. Lizards and snakes of Alabama. University of Alabama Press, 397 pp. - get paper here
  • Holbrook, Joshua D., Cameron A. Younge, David P. Young, Jr. and Noah Greenwald. 2013. Nerodia floridana (Florida green watersnake) diet. Herpetological Review 44 (3): 525 - get paper here
  • Jensen, John B.; Carlos D. Camp, Whit Gibbons, & Matt J. Elliott 2008. Amphibians and reptiles of Georgia. University of Georgia Press, 575 pp.
  • Lawson, R. 1987. Molecular studies of Thamnophiine snakes: 1. The phylogeny of the genus Nerodia. Journal of Herpetology 21 (2): 140-157 - get paper here
  • Lillywhite, Harvey B. 2014. How Snakes Work: Structure, Function and Behavior of the World's Snakes. Oxford University Press, New York, 256 pp
  • Mehrtens, J.M. 1987. Living snakes of the world in color. Sterling Publ. Co., hic., New York, NY: 480 pp.
  • Neill, Wilfred T.;Rose, Francis L. 1953. Records of the green watersnake, Natrix cyclopion floridana, in South Carolina. Copeia 1953 (2): 127 - get paper here
  • Pearson, D.D. 1966. Serological and immunoelectrophoretic comparisons among species of snakes. Bull. Serol. Mus. 36: 8
  • Sanderson W E. 1993. Additional evidence for the specific status of Nerodia cyclopion and Nerodia floridana (Reptilia: Colubridae). Brimleyana 19: 83-94. - get paper here
  • Siegel, Dustin S.; Stanley E. Trauth, Justin L. Rheubert, Brian Rabe, Brenton Ruopp, Aurélien Miralles, Christopher M. Murray, and Robert D. Aldridge 2014. Novel Cloacal Glands in Snakes: The Phylogenetic Distribution of Ventral Urodaeal Glands in Thamnophiini. Herpetologica 70 (3): 279-289. - get paper here
  • Tennant, A. 2003. Snakes of North America - Eastern and Central Regions, revised edition. Lone Star Books, 605 pp.
  • Tennant, A. & Bartlett, R.D. 2000. Snakes of North America - Eastern and Central Regions. Gulf Publishing, Houston, TX, 588 pp.
  • Thompson, J. Scott;Crother, Brian I. 1998. Allozyme variation among disjunct populations of the Florida green watersnake (Nerodia floridana). Copeia 1998 (3): 715-719 - get paper here
  • Vogrinc, Philip, John D. Willson, Andrew M. Durson, Larry A. Bryan, Zach Ross, Joshua Holbrook and Don Filipiak. 2013. Nerodia floridana (Florida green watersnake) diet. Herpetological Review 44 (4): 695 - get paper here
  • Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. [type catalogue] Taylor and Francis, CRC Press, 1237 pp.
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