|Hemibungarus calligaster calligaster|
Sources vary greatly on the number of species within the genus; several species have been moved back and forth between Calliophis, Hemibungarus and more recently to Sinomicrurus, sometimes without much evidence to explain the reclassification. Only recently has mitochondrial DNA sequencing begun to clarify their taxonomy. DNA has also been used to establish the relationship between the Asiatic coral snakes and the North American coral snakes. Slowinski, Boundy and Lawson erected the genus Sinomicrurus for species with a closer relationship to the genus Micrurus, but the name is not always accepted.
- Brown, R., Ledesma, M. & Paguntalan, L. (2009). "Hemibungarus calligaster". IUCN Red List of Threatened Species. IUCN. 2009: e.T169857A6682926. Retrieved 4 March 2016.
- Hemibungarus at the Reptarium.cz Reptile Database. Accessed 4 March 2016.
- Van Wallach; Kenneth L. Williams; Jeff Boundy (22 April 2014). Snakes of the World: A Catalogue of Living and Extinct Species. CRC Press. pp. 325–326. ISBN 978-1-4822-0848-1.
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