Identification:
This is a medium-sized snake species, reaching a snout-vent length (SVL) of up to 51 cm. It is characterized by keeled dorsal scales, with 21 scale rows around the midbody. It possesses 159-172 ventral scales and 52-74 subcaudal scales. The eyes are reddish-brown. The body is green. Females have a white stripe running from the snout along the flanks towards the vent, while males have an additional red stripe below the white stripe. The head is larger than the neck, and the nostrils are positioned away from the eyes.
Biology and Ecology:
This nocturnal reptile species typically inhabits well-preserved evergreen forests. It is observed around water pools within the forest in search of prey, primarily frogs and toads, and appears only during the rainy season. It coexists with the white-lipped pit viper (Trimeresurus albolabris). The species name originates from the Latin word “rubens,” meaning “red.” This is a dangerous venomous snake with cytotoxic venom that can be lethal.
Distribution:
This reptile species was first discovered in 2011 in Cat Tien National Park, Vinh Cuu Nature Reserve in Dong Nai province, and Ho Chi Minh City. Specimens of this species have been collected from forested habitats on low-lying hills up to an altitude of approximately 500 meters above sea level.