Molecular Systematics and Phylogeny of Old and New World Ratsnakes, Elaphe Auct., and Related Genera (Reptilia, Squamata, Colubridae)

  title={Molecular Systematics and Phylogeny of Old and New World Ratsnakes, Elaphe Auct., and Related Genera (Reptilia, Squamata, Colubridae)},
  author={Urs Utiger and Notker Helfenberger and Beat Sch{\"a}tti and C. Schmidt and Markus Ruf and Vincent Ziswiler},
  journal={Russian Journal of Herpetology},
The phylogenetic relationships of the Holarctic ratsnakes (Elaphe auct.) are inferred from portions of two mitochondrial genes, 12S rRNA and COI. Elaphe Fitzinger is made up of ten Palaearctic species. Natrix longissima Laurenti (type species) and four western Palaearctic species (hohenackeri, lineatus, persicus, and situla) are assigned to Zamenis Wagler. Its phylogenetic affinities with closely related genera, Coronella and Oocatochus, remain unclear. The East Asian Coluber porphyraceus… 

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