Tropidonophis is a genus of snakes in the subfamily Natricinae of the family Colubridae.^[1]

Quick Facts Tropidonophis, Scientific classification ...

Tropidonophis
Tropidonophis mairii
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Squamata
Suborder:	Serpentes
Family:	Colubridae
Subfamily:	Natricinae
Genus:	Tropidonophis Jan, 1863

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The following 20 species are recognized as being valid.^[1]

• Tropidonophis aenigmaticus Malnate & Underwood [fr], 1988 – East Papuan keelback,
• Tropidonophis dahlii (F. Werner, 1899) – New Britain keelback
• Tropidonophis dendrophiops (Günther, 1883) – spotted water snake
• Tropidonophis dolasii Kraus [fr] & Allison [fr], 2004
• Tropidonophis doriae (Boulenger, 1897) – barred keelback
• Tropidonophis elongatus (Jan, 1865) – Moluccan keelback
• Tropidonophis halmahericus (Boettger, 1895)
• Tropidonophis hypomelas (Günther, 1877) – Bismarck keelback
• Tropidonophis mairii (Gray, 1841) – common keelback, Mair's keelback
• Tropidonophis mcdowelli Malnate & Underwood, 1988 – Northern New Guinea keelback
• Tropidonophis montanus (Lidth de Jeude, 1911) – North Irian montane keelback
• Tropidonophis multiscutellatus (Brongersma, 1948) – many-scaled keelback
• Tropidonophis negrosensis (Taylor, 1917) – Negros spotted water snake
• Tropidonophis novaeguineae (Lidth De Jeude, 1911) – New Guinea keelback
• Tropidonophis parkeri Malnate & Underwood, 1988 – Parker's keelback, highland keelback
• Tropidonophis picturatus (Schlegel, 1837) – painted keelback
• Tropidonophis punctiventris (Boettger, 1895) – Halmahera keelback
• Tropidonophis spilogaster (Boie, 1827) – Boie's keelback
• Tropidonophis statisticus Malnate & Underwood, 1988 – Papua New Guinea montane keelback
• Tropidonophis truncatus (W. Peters, 1863)

Nota bene: A binomial authority in parentheses indicates that the species was originally described in a genus other than Tropidonophis.