Original: Subspecies Taxon author Common name Geographic range T. j. bourreti Klemmer, 1963 Bourret's pitviper Northwestern Vietnam (in the provinces of Lao Cai and Lai Chau, and possibly also in adjascent China (Yunnan).
Simplified: T. j. bourreti Klemmer, 1963 Bourret's pitviper Northwestern Vietnam (in the provinces of Lao Cai and Lai Chau, and possibly also in adjascent China (Yunnan).