Drymarchon couperi
(Holbrook, 1842)
dry-MAR-shawn — koo-PER-ai
SSAR 9th Edition Comments:
Krysko et al. (2016, Zootaxa 4138: 549–569) described a new taxon, D. kolpobasileus, based on morphological differences of the skull and mtDNA sequence data from D. couperi. Guyer et al. (2019, Zootaxa 4695: 168–174) were unable to confirm head-shape differences between D. kolpobasileus and D. couperi, and Folt et al. (2019, PLoS One 14: e0214439) examined lineage structure using nDNA and found it failed to support conclusions from mtDNA alone. Both the Guyer and Folt studies recommend against recognition of D. kolpobasileus.
Range maps are based on curated specimens and provided gratis by CNAH.
(Created by Travis W. Taggart; Version: 2023.04.08.20.40.09)
Download GeoJSON polygon range file: - 0.3 MB
First instance(s) of published English names:
Couper's Snake (Spilotes couperi: Yarrow, Henry C. 1882. Check list of North American Reptilia and Batrachia with catalogue of specimens in U. S. National Museum. Bulletin of the United States National Museum (24):1-249); Georgia Snake (Spilotes erebennus: Yarrow, Henry C. 1882. Check list of North American Reptilia and Batrachia with catalogue of specimens in U. S. National Museum. Bulletin of the United States National Museum (24):1-249); Indido Snake (Spilotes corais couperii: Beyer, George. 1900. Louisana herpetology. Proceedings of the Louisiana Society of Naturalists 1897-1899():24-46); Indigo Snake (Spilotes corais couperi: Brown, Arthur, E. 1902. Report of the Board of Directors. Pages 5-22 in Thirtieth Annual Report of the Board of Directors of the Zoological Society of Philadelphia. Allen, Lane, and Scott, Philadelphia, Pennsylvania. pp.); Gopher-snake (Drymarchon corais couperi: Stejneger, Leonhard H. and Thomas Barbour. 1917. A Checklist of North American Amphibians and Reptiles. Harvard University Press, Cambridge, Massachusetts. pp.); Indigo-snake (Drymarchon corais couperi: Stejneger, Leonhard H. and Thomas Barbour. 1917. A Checklist of North American Amphibians and Reptiles. Harvard University Press, Cambridge, Massachusetts. pp.); Indigo Snake (Drymarchon corais couper: Schmidt, Karl Peterson and D. D. Davis. 1941. Field Book of Snakes of the United States and Canada. C.P. Putnam and Sons, New York. 365pp.); Indigo Snake (Drymarchon corais couperi: Schmidt, Karl Peterson and D. D. Davis. 1941. Field Book of Snakes of the United States and Canada. C.P. Putnam and Sons, New York. 365pp.); Indigo Snake (Drymarchon corais: Schmidt, Karl P. 1953. A Check List of North American Amphibians and Reptiles. 6th Edition. University of Chicago Press, Chicago, Illinois. 280pp.);
Catalog of American Amphibians and Reptiles
The Reptile Database
GenBank
USGS - Nonindigenous Aquatic Species Database
Selected References:
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1842
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Holbrook, John E. North American Herpetology; or Description of the Reptiles Inhabiting the United States. Second Edition. Volume 3. J. Dobson, Philadelphia, Pennsylvania. 128pp.
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1981
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McCranie, James R. Drymarchon, D. corais. Catalogue of American Amphibians and Reptiles (267):1-4
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1991
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Collins, Joseph T. Viewpoint: A new taxonomic arrangement for some North American amphibins and reptiles Herpetological Review 22(2):42-43
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2001
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Wuster, Wolfgang, José Luís Yrausquin, and Abraham Mijares. A new species of indigo snake from north-western Venezuela (Serpentes: Colubridae: Drymarchon). Herpetological Journal 11(4):157-165
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2014
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Crother, Brian I. The bold taxonomic hypotheses of Collins (1991): 23 years later. Herpetological Review 45(2):268-272
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2016
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Krysko, Kenneth L., Michael C. Granatosky, Leroy P. Nunez, and Daniel J. Smith. A cryptic new species of Indigo Snake (genus Drymarchon) from the Florida Platform of the United States. Zootaxa 4138(3):549-569
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2019
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Folt, Brian, Javan Bauder, Stephen Spear, Dirk Stevenson, Michelle Hoffman, Jamie R. Oaks, Perry L. Wood, Jr., Christopher Jenkins, David A. Steen, and Craig Guyer. Taxonomic and conservation implications of population genetic admixture, mito-nuclear discordance, and male-biased dispersal of a large endangered snake, Drymarchon couperi. PLoS One 14(3):e0214439
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2019
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Guyer, Craig, Brian Folt, Brian Folt, Michelle Hoffman, Dirk Stevenson, Scott M. Goetz, Melissa A. Miller, and James C. Godwin. Patterns of head shape and scutellation in Drymarchon couperi (Squamata: Colubridae) reveal a single species. Zootaxa 4695(2):168–174
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