Complex sentence: But the latter is much smaller (max.50 cm) than fully grown "Calliophis bivirgatus", and it may be dangerous to confuse these two species as the Reed Snake is a non-venomous snake whereas the Blue Malaysian coral snake has a potentially lethal venom.
Split into simpler sentences: But the latter is much smaller (max.50 cm) than fully grown "Calliophis bivirgatus". It may be dangerous to confuse these two species as the reed snake is a nonvenomous snake, whereas the blue Malaysian coral snake has a potentially lethal venom.