| 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 |