Major changes have been proposed for the reclassification of both Old World & New World Ratsnakes in the last few years. A summary of these can be found below.

* Burbrink & Lawson 2006

Old name	New name	Common Name
Elaphe erythrura	Coelognathus erythrurus	Philippene's Ratsnake
Elaphe flavolineata	Coelognathus flavolineatus	Yellow Stripe Ratsnake
Elaphe helena	Coelognathus helena	Trinket Snake
Elaphe radiata	Coelognathus radiatus	Radiated Ratsnake
Elaphe subradiatus	Coelognathus subradiatus	Indonesian Ratsnake
Elaphe schrenkii anomala	Elaphe anomala	Amur Ratsnake
Elaphe bella	Maculophis bellus *
Elaphe quatuorlineata sauromates	Elaphe sauromates	Eatern Fourlined Ratsnake
Elaphe conspicillata	Euprepiophis conspicillatus	Japanese Forest Ratsnake
Elaphe mandarina	Euprepiophis mandarinus	Mandarin Ratsnake
Elaphe perlacea	Euprepiophis perlaceus	Pearl Banded Ratsnake
Elaphe janseni	Gonyosoma janseni	Celebe Black Tailed Racer
Elaphe oxycephala	Gonyosoma oxycephalum	Red Tailed Racer
Elaphe rufodorsata	Oocatochus rufodorsatus	Red Backed Ratsnake
Elaphe porphyracea	Oreocryptophis porphyraceus	Bamboo Ratsnakes
Elaphe cantoris	Orthriophis cantoris	Cantor's Ratsnake
Elaphe hodgsonii	Orthriophis hodgsonii	Hodgson's Ratsnake
Elaphe moellendorffi	Orthriophis moellendorffi	Hundred Flower Snake
Elaphe taeniura	Orthriophis taeniurus	Beauty Snakes
Elaphe bairdi	Pantherophis bairdi	Bairds Ratsnake
Elaphe guttata	Pantherophis guttatus	Cornsnake
Elaphe obsoleta	Pantherophis obsoletus	North American Ratsnakes
Elaphe vulpina	Pantherophis vulpinus	Fox Snakes
Elaphe flavirufa	Pseudelaphe flavirufa	Night Snakes
Elaphe frenata	Rhadinophis frenatus *	Rein Snake
Elaphe prasina	Rhadinophis prasinus *	Green Bush Snake
Elaphe scalaris	Rhinechis scalaris	Ladder Snake
Elaphe hohenackeri	Zamenis hohenackeri	Transcaucasian Ratsnake
Elaphe lineata	Zamenis lineatus	Italian Aesculapian Snake
Elaphe longissima	Zamenis longissimus	Aescalapian Snake
Elaphe persica	Zamenis persicus	Persian Ratsnake
Elaphe situla	Zamenis situla	Leopard Snake

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References
1. Helfenberger, Notker 2001. Phylogenetic relationship of Old World Ratsnakes based on visceral organ topography, osteology, and allozyme variation. Russ. J. Herpetol. (Suppl.): 1-56.
2.Utiger, Urs, Notker Helfenberger, Beat Schätti, Catherine Schmidt, Markus Ruf and Vincent Ziswiler 2002 Molecular systematics and phylogeny of Old World and New World ratsnakes, Elaphe Auct., and related genera (Reptilia, Squamata, Colubridae). Russ. J. Herpetol. 9 (2): 105-124.
3.Utiger, Schatti and Helfenberger; 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 Vol.12, No.1, 2005
4. Frank T. Burbrin, Robin Lawson. How and when did Old World ratsnakes disperse into the New World? Molecular Phylogenetics and Evolution Volume 43, Issue 1, April 2007, Pages 173-189

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