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Nerodia paucimaculata (TINKLE & CONANT, 1961)

IUCN Red List - Nerodia paucimaculata - Near Threatened, NT
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Higher TaxaColubridae (Natricinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Concho Water Snake 
SynonymNatrix harteri paucimaculata TINKLE & CONANT 1961: 34
Nerodia harteri paucimaculata — TINKLE & CONANT 1961
Nerodia harteri paucimaculata — MECHAM 1983
Nerodia harteri paucimaculata — CONANT & COLLINS 1991: 156
Nerodia paucimaculata — DENSMORE et al. 1992
Nerodia harteri paucimaculata — DIXON 2000
Nerodia paucimaculata — CROTHER 2000: 67
Nerodia harteri paucimaculata — TENNANT & BARTLETT 2000: 159
Nerodia harteri paucimaculata — TENNANT 2003: 164
Nerodia paucimaculata — ERNST & ERNST 2003: 238
Nerodia paucimaculata — CROTHER et al. 2012
Nerodia paucimaculata — WALLACH et al. 2014: 484
Nerodia paucimaculata — BASSETT & PANDELIS 2024 
DistributionUSA (C Texas: Colorado River drainage from the Coke and Runnels counties line to near Bend, San Saba County on the Colorado River and in the Concho River from San Angelo [Tom Green County] to its confluence with the Colorado).

Type locality: "The Colorado River south of the city limits of Robert Lee, Coke County, Texas."  
Reproductionovovivparous 
TypesHolotype: AMNH 85542, a 652 mm male (D.W. Tinkle and D. L. McGregor, 8 Oct. 1960). 
DiagnosisAdditional details, e.g. a detailed description or comparisons (6126 characters), are available for collaborators and contributors. Please contact us for details. 
CommentDensmore et al. (1992) elevated Nerodia harteri paucimaculata to species status after Rose & Selcer had suggested that already in 1989. 
EtymologyNamed after Latin pauci-, few, little + Latin maculata, spotted. [“...the dark circular spots on the belly absent or greatly reduced in size, number, and intensity of pigmentation...”]. 
References
  • Bassett, L., & Pandelis, G. 2024. Updated geographic distributions for Texas reptiles. Reptiles & Amphibians, 31(1): e21492-e21492 - 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
  • Densmore III,L.D.; Rose,F.L. & Kain,S.J. 1992. Mitochondrial DNA evolution and speciation in water snakes (genus Nerodia) with special reference to Nerodia harteri. Herpetologica 48 (1): 60-68 - get paper here
  • Dixon, James R. 2000. Amphibians and reptiles of Texas, second edition. Texas A&M University Press, 421 pp.
  • Ernst, C.H. & Ernst, E.M. 2003. Snakes of the United States and Canada. Smithsonian Inst. Press, Washington, 668 pp.
  • Greene, B.D., J.R. Dixon, M.J. Whiting, and J.M. Mueller. 1999. Reproductive ecology of the Concho water snake, Nerodia harteri paucimaculata . Copeia 1999 (3): 700-708 - get paper here
  • Rose, F.L. and Selcer, K.W. 1989. Genetic divergence of the allopatric populations of Nerodia harteri. Journal of Herpetology 23 (3): 261 –266 - 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
  • Smith, J. R.;Brown, Chuck;Thornton, Okla W., Jr 1996. Geographic Distribution. Nerodia harteri paucimaculata. Herpetological Review 27 (1): 35 - 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.
  • Thornton, Okla W., Jr.;Smith, Jerry R. 1993. New county records of amphibians and reptiles from West-Central Texas. Herpetological Review 24 (1): 35-36 - get paper here
  • Tinkle, D.W. & CONANT,R. 1961. The rediscovery of the water snake, Natrix harteri, in western Texas with the description of a new subspecies. Southwestern Naturalist 6: 33-44 - 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.
  • Weidler, J M 2019. Protected areas of Texas in relation to Texas reptiles. Herpetological Review 50 (3): 462-473 - get paper here
  • Werler, John E. & James R. Dixon 2000. Texas Snakes. University of Texas Press, 544 pages
  • Whiting, Martin J., James R. Dixon, Brian D. Greene, James M. Mueller, Okla W. Thornton Jr., Jeff S. Hatfield, James D. Nichols and James E. Hines. 2008. Population Dynamics of the Concho Water Snake in Rivers and Reservoirs. Copeia 2008 (2): 438-445 - get paper here
  • Whiting, Martin J.;Dixon, James R.;Greene, Brian D. 1997. Spatial ecology of the Concho water snake (Nerodia herteri paucimaculata) in a large lake system. Journal of Herpetology 31 (3): 327-335 - get paper here
 
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