The Oriental Colubrine Genus Coelognathus Fitzinger, 1843 and Classification of Old and New World Racers and Ratsnakes (Reptilia, Squamata, Colubridae, Colubrinae)

  title={The Oriental Colubrine Genus Coelognathus Fitzinger, 1843 and Classification of Old and New World Racers and Ratsnakes (Reptilia, Squamata, Colubridae, Colubrinae)},
  author={Urs Utiger and Beat Sch{\"a}tti and Notker Helfenberger},
  journal={Russian Journal of Herpetology},
The phylogenetic relationships of the colubrine genus Coelognathus is examined on the basis of two partially sequenced mitochondrial genes, COI and 12S rRNA. Maximum parsimony reconstructions show that C. erythrurus , C. flavolineatus , C. helena , C. radiatus , and C. subradiatus share a common ancestor. Coelognathus spp. represent an evolutionary lineage among Oriental racers. Based on molecular data, external morphology, and pulmonary features, Coluber prasinus Blyth and Herpetodryas… 

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