| Species | Taxon author | Common name | Geographic range |
|---|---|---|---|
| H. hypnaleT | (Merrem, 1820) | Hump-nosed viper | Peninsular India to the Western Ghats as far north as 16° N, and Sri Lanka. |
| H. nepa | (Laurenti, 1768) | Sri Lankan hump-nosed viper | In Sri Lanka throughout forested areas, from lowland rainforest to over 1,800 m (5,900 ft) altitude. |
| H. walli | Gloyd, 1977 | Wall's hump-nosed viper | Sri Lanka. |
T) Type species.
Read more about this topic: Hypnale
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