Appearance
Dorsally it is olive with small dark spots and two longitudinal series of small whitish spots or narrow crossbars. Behind the head there is an orange or yellow collar, usually interrupted on the midline, followed by a blackish blotch on the nape. The upper labials are yellowish with black sutures. Ventrally it is yellowish, speckled with brown or black, or entirely grayish olive or blackish. It may attain 83 cm in total length, tail 20 cm .Distribution
India , Miao - Changlang district, Chimpu, Itanagar - Papum Pare district, Pasighat, Boleng - East Siang district) ), Bhutan, Bangladesh, Nepal, N Myanmar , China .Type locality: "Nepal"
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