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Nerodia cyclopion (DUMÉRIL, BIBRON & DUMÉRIL, 1854)

IUCN Red List - Nerodia cyclopion - Least Concern, LC

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Higher TaxaNatricidae, Colubroidea, Serpentes (snakes) 
Subspecies 
Common NamesE: Mississippi Green Water Snake
G: Grüne Wasserschlange, Grüne Schwimmnatter 
SynonymTropidonotus cyclopion DUMÉRIL, BIBRON & DUMÉRIL 1854: 576
Tropidonotus cyclopium [sic] — BOULENGER 1893: 244
Natrix cyclopion — LOENNBERG 1894
Natrix cyclopion — BURT 1935
Natrix cyclopion — CLAY 1938
Nerodia cyclopion — CONANT & COLLINS 1991: 147
Nerodia cyclopion — MATTISON 1995: 162
Nerodia cyclopion — CROTHER 2000: 67 
DistributionUSA (E Texas, Louisiana, Arkansas, SE Missouri, S Illinois, W/S Mississippi, S Alabama, S/E Georgia, NW Florida, S South Carolina, W Tennessee, W Kentucky)

Type locality: “New Orleans” Map legend:
TDWG region - Region according to the TDWG standard, not a precise distribution map.

NOTE: TDWG regions are generated automatically from the text in the distribution field and not in every cases it works well. We are working on it.
 
TypesSyntypes (2), MNHN 3481, largest a 1130 mm specimen. 
CommentDIAGNOSIS: Natrix c. cyclopion and N. c. floridana may be distinguished from other North American species of the genus by the presence of one or more subocular plates and an ill-defined dorsal color pattern of about 50 mid-dorsal bars alternating with a lateral series, which in turn is more or less in alternation with a second and lower lateral series. The typical subspecies is distinguished by having the belly brown, scale rows 27 in males and 29 in females, and caudals averaging 73 in males and 64 in females [CLAY 1938: 177].

Reproduction: viviparous. 
References
  • Allen, Morrow J. 1932. A survey of the Amphibians and reptiles of Harrison County, Mississippi American Museum Novitates (542): 1-20 - get paper here
  • Blackburn, D.G. & Stewart, J.R. 2011. Viviparity and placentation in snakes. In Aldridge & Sever (eds), Reproductive biology and phylogeny in snakes. CRC Press, pp. 119-181
  • Boulenger, G.A. 1893. Catalogue of the snakes in the British Museum (Nat. Hist.) I. London (Taylor & Francis), 448 pp. - get paper here
  • Burt, Charles E. 1935. Further records of the ecology and distribution of amphibians and reptiles in the middle west American Midland Naturalist 16 (3): 311-336 - get paper here
  • Clay, William M. 1938. A synopsis of the North American Water Snakes of the genus Natrix. Copeia 1938 (4): 173-182 - 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
  • Dixon, James R. 2000. Amphibians and reptiles of Texas, second edition. Texas A&M University Press, 421 pp.
  • Duméril, A.M.C., G. BIBRON & A.H.A. DUMÉRIL 1854. Erpétologie générale ou Histoire Naturelle complète des Reptiles. Vol. 7 (partie 1). Paris, xvi + 780 S. - get paper here
  • Dundee, H.A., & Rossman, D.A. 1989. The amphibians and reptiles of Louisiana Louisiana St. Univ. Press, Baton Rouge 300 pp.
  • 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.
  • Irwin, Kelly J. 2004. Arkansas Snake Guide. Arkansas Game & Fish Commission, Little Rock, 50 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
  • Lönnberg, Einar 1894. Notes on reptiles and batrachians collected in Florida in 1892 and 1893 Proc. US Natl. Mus. 17 (1003): 317-339 - get paper here
  • Mattison, Chris 1995. The Encyclopedia of Snakes. New York: Facts on File, 256 pp.
  • Sanderson W E. 1993. Additional evidence for the specific status of Nerodia cyclopion and Nerodia floridana (Reptilia: Colubridae). BRIMLEYANA 19: 83-94.
  • Tennant, A. & Bartlett, R.D. 2000. Snakes of North America - Eastern and Central Regions. Gulf Publishing, Houston, TX, 588 pp.
  • Werler, John E.&; James R. Dixon 2000. Texas Snakes. University of Texas Press, 544 pages
 
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