Gold-ringed Cat Snake

The mangrove snake or gold-ringed cat snake is a rear-fanged venomous snake in the family Colubridae, endemic to Southeast Asia. It is one of the biggest cat snake species, averaging 2.4–2.7 m in length. It is black above with yellow transverse bands, yellow lips edged with black, a black or bluish underside that is uniform or speckled with yellow, and a yellow throat (Wikipedia, general species account).

It is mostly nocturnal and potentially defensive, and is mildly venomous: moderate envenomations with intense swelling have been reported, but there has never been a confirmed fatality (Wikipedia, general species account).