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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."  
Reproductionovoviviparous 
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, & 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 & 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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