Learn about the Russell 's viper , a venomous snake from the Indian subcontinent that is one of the Big Four causes of snakebite deaths. Discover its habitat, diet, fangs, heat-sensing ability, and how to coexist with it. Russell's viper (Daboia russelii) is a venomous snake found in Asia. The species is named for Patrick Russell, a Scottish herpetologist who first described many of India's snakes. In Bengali, this snake is called Chandroborha since it carries lenticular or more precisely lunar marks all over its body. Apart from being a member of the big four snakes in India, Russell's viper is also responsible for causing the most snakebite incidents and deaths among all venomous snakes. Russell’s viper , (Daboia russelii), abundant, highly venomous terrestrial snake of the family Viperidae. It is found from India to Taiwan and Java, most often in open country. It is a major cause of snakebite deaths within its range because it often exists in farmlands where human contact and rodent prey are abundant. Russell's viper is a venomous snake known for its triangular head and distinctive body patterns, playing a significant role in India's ecosystem.