- See snake scales for the terminology used
Eye moderate, its diameter in the adult equalling its distance from the nostril; rostral just visible from above; suture between the internasals as long as that between the prefrontals; frontal larger than its distance from the end of the snout, a little shorter than the parietals; loreal as long as deep or deeper than long; one preocular; three (rarely two) postoculars; temporals 1+1 or 1+2; upper labials 8 or 9, third, fourth and fifth, or fourth, fifth, and sixth entering the eye; 5 lower labials in contact with the anterior chin shields, which are shorter than the posterior. Scales in 19 rows, rather strongly keeled, the outer however, perfectly smooth. Ventrals 131-150; anal divided ; subcaudals 65-75. Brown above; a series of yellow spots, each between two black spots or short transverse bands, along each side of the back; upper labials yellowish with black sutures; a yellow; black-edged, oblique streak from the eye to the gape; a yellow band across the nape, behind the parietals, becoming indistinct with age; belly white, closely dotted with brown on the sides. Total length 51-66 cm (20-26 in.), tail 13-19 cm (5-7½ in).
- ↑ Boulenger, G.A. 1893. Catalogue of the Snakes in the British Museum (Natural History) Volume I. London.
- Günther, A. 1864 The Reptiles of British India. London (Taylor & Francis), xxvii + 452 pp. PDF
- Smith, M. A. 1941. Fauna of British India. Reptilia and Batrachia.