Tropidonophis

Tropidonophis is a genus of snakes in the subfamily Natricinae of the family Colubridae.

==Species== The following 20 species are recognized as being valid. Tropidonophis aenigmaticus – East Papuan keelback, Tropidonophis dahlii – New Britain keelback Tropidonophis dendrophiops – spotted water snake Tropidonophis dolasii Tropidonophis doriae – barred keelback Tropidonophis elongatus – Moluccan keelback Tropidonophis halmahericus Tropidonophis hypomelas – Bismarck keelback Tropidonophis mairii – common keelback, Mair's keelback Tropidonophis mcdowelli – Northern New Guinea keelback Tropidonophis montanus – North Irian montane keelback Tropidonophis multiscutellatus – many-scaled keelback Tropidonophis negrosensis – Negros spotted water snake Tropidonophis novaeguineae – New Guinea keelback Tropidonophis parkeri – Parker's keelback, highland keelback Tropidonophis picturatus – painted keelback Tropidonophis punctiventris – Halmahera keelback Tropidonophis spilogaster – Boie's keelback Tropidonophis statisticus – Papua New Guinea montane keelback Tropidonophis truncatus