Trimeresurus septentrionalis

[2] The head scalation consists of 10–11(12) upper labials, the first of which are fused to the nasal.

The head scales are small, subequal and feebly imbricate, smooth or weakly keeled.

[2] Holotype: MHNG 1404.31[2] It is found in Bangladesh, Bhutan, Nepal and northwestern India (Simla).

Regenass & Kramer (1981) list the type locality as "Hyangcha (Nepal) 83o 55' E.L. 28o 15' N.B.

Elevated to a species in another genus, Cryptelytrops septentrionalis, by Malhotra & Thorpe (2004).