| pliocene-pleistocene lineage diversifications in the eastern indigo snake (drymarchon couperi) in the southeastern united states. | indigo snakes (drymarchon; with five currently recognized species) occur from northern argentina, northward to the united states in southern texas and eastward in disjunct populations in florida and georgia. based on this known allopatry and a difference in supralabial morphology the two united states taxa previously considered as subspecies within d. corais (boie 1827), the western indigo snake, d. melanurus erebennus (cope 1860), and eastern indigo snake, d. couperi (holbrook 1842), are curren ... | 2016 | 26778258 |
| health and nutritional assessment of free-ranging eastern indigo snakes (drymarchon couperi) in georgia, united states. | clinical pathology and nutritional parameters are useful in evaluating and monitoring threatened and endangered wildlife populations, but reference ranges for most snake species are lacking. from 2001 to 2005, health assessments were performed on 58 eastern indigo snakes (eis) (drymarchon couperi) captured in the wild in southeastern georgia, united states. health and nutritional assessments performed included hematology, serum biochemistry, fat-soluble vitamins, heavy metals, pesticide contamin ... | 2016 | 28080899 |
| a cryptic new species of indigo snake (genus drymarchon) from the florida platform of the united states. | indigo snakes (genus drymarchon) occur from northern argentina northward into to the united states, where they inhabit southern texas and disjunct populations in mississippi, florida and georgia. based on allopatry and morphological differences collins (1991) hypothesized that the two united states taxa-the western indigo snake, d. melanurus erebennus (cope, 1860), and the eastern indigo snake, d. couperi (holbrook, 1842)-deserved full species recognition. building upon this hypothesis with mole ... | 2016 | 27470779 |