AppearanceEye 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 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 , tail 13–19 cm .
BehaviorAlthough not aquatic, it can be found actively hunting from dawn to dusk on stream banks or close to other bodies of water.
HabitatIt prefers moist deciduous forests and evergreen forests.
FoodIt eats mainly toads.
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