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Utiger, U.; Schätti, B.; Helfenberger, N.
2005
The Oriental colubrine genus Coelognathus Fitzinger, 1843 and classification of Old and New World racers and ratsnakes (Reptilia, Squamata, Colubridae, Colubrinae).
Russian Journal of Herpetology 12(1): 39-60.