(Hypnale zara)
Hypnale zara (Lowlands hump-nosed pit viper or පහතරට මූකලන් තෙලිස්සා in Sinhala) is a venomous pitviper species endemic to Sri Lanka. It is distinguished from Hypnale nepa by variably colored body and less upcurved snout. No subspecies are currently recognized.