Phylogenetic, population genetic, and morphological analyses reveal evidence for one species of Eastern Indigo Snake (Drymarchon couperi)
Brian Folt, Javan Bauder, Stephen Spear, Dirk Stevenson, Michelle Hoffman, Jamie R. Oaks, Christopher Jenkins, David A. Steen, Craig Guyer
The paper rejects the two-species hypothesis for Drymarchon couperi by showing phylogenetic, population genetic, and morphological evidence supports a single species.
bioRxiv · Oct 26, 2018 · PreprintZoology