David, Vidal & Pauwels, 2001
Khao Yai NP, Nakhon Ratchasima, Thailand. February 26, 2016.
We spotted this unreachable viper while walking along a forest stream at night in Khao Yai National Park. This species likes to rest in trees over water, and we saw several more using the microhabitat.
My Thailand Flickr album is here.
HerpMapper records for this species are here.