The species is endemic to the Nicobar Islands of India.

The specific name, woodmasoni, is in honor of English zoologist James Wood-Mason.

Smith reported that the holotype of this species was missing from the ZSI Kolkata collections.

[5] The details of the specimen, ZSI25503 are as follows: Snout-to-vent length: 440 mm (17 in).

Dorsal scale rows: at neck 18; at midbody 17.