page_title: Coelognathus
hierarchical_section_title: Coelognathus
caption_attribution_description: English: Coelognathus subradiatus. Male from Baucau town, Baucau District (USNM 573676).
context_page_description: Coelognathus is a genus of seven rat snakes from South and Southeast Asia that were formerly assigned to the genus Elaphe. Based on morphological evidence and protein similarities, in 2001, Helfenberger revalidated the name Coelognathus that had originally been proposed by Leopold Fitzinger in 1843. The distinction between Coelognathus and Elaphe was further supported by mitochondrial DNA sequence and additional morphological evidence in 2005.
context_section_description: Coelognathus is a genus of seven rat snakes from South and Southeast Asia that were formerly assigned to the genus Elaphe.  Based on morphological evidence and protein similarities, in 2001, Helfenberger revalidated the name Coelognathus that had originally been proposed by Leopold Fitzinger in 1843. The distinction between Coelognathus and Elaphe was further supported by mitochondrial DNA sequence and additional morphological evidence in 2005.
caption: Indonesian ratsnake (Coelognathus subradiatus) in Baucau District, East Timor.
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