Boiga dendrophila Alchetron, The Free Social Encyclopedia What size, how old, and how heavy should Western mangrove snakes (Boiga melanota) be when breeding them? Would the two snakes in the picture below be considered fit for breeding? The one Mangrove Snake (Boiga dendrophila), part of the colubridae family (rear fanged) is considered as mildly venomous. Such a spectacular coloured species to work with, incredibly nervous and defensive when intimidated. Footage coming soon Immaculate Western Mangrove Cat snake from my recent Thailand expedition None of us had been to this region of southern Thailand before, so it was a bit of a mystery what