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 Boiga Dendrophila Melanota Stock Photo Download Image Now Animal, Animal Body Part, Animal Head iStock A mangrove catsnake (Boiga dendrophila melanota) from Thailand. These snakes get around 2,5m long and are one of the bigger species of the genus Boiga. One of my most difficult species to photograph is Boiga. Here is my female mangrove cat snake (Boiga dendrophila dendrophila) and she does not sit still. She is constantly taking off, striking,