The Concho water snake, Nerodia paucimaculata, is a species of mostly aquatic, nonvenomous colubrid snake native to the United States.

Geographic rangeEdit

It is found only in west-central Texas in the Colorado and Concho river systems, in Coke, Runnels, San Saba, and Tom Green counties.

Conservation statusEdit

Due to its limited range, it is considered a threatened species in the state of Texas.


It was once considered to be a subspecies of the Brazos water snake, Nerodia harteri, but was elevated to full species status by Densmore et al. in 1992.[1]

Description Edit

The Concho water snake grows from 16 to 32 inches (41-81 cm), and looks very much like Nerodia harteri, but tends to be more red in color and has no dark markings on the underside.

References Edit

  1. Densmore III, L.D., F.L. Rose and S.J. Kain. 1992. Mitochondrial DNA evolution and speciation in water snakes (genus Nerodia) with special reference to Nerodia harteri. Herpetologica 48(1):60-68.

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