This mutation started out being called a Ghost House Snake or a Blue House Snake, due to its greyish/brown appearance. This mutation was originally thought by some people to be a Anerythristic mutation. In my opinion, and with the proof of breeding results, this mutation is a Hypomelanistic mutation. We say this because when we bred this recessive mutation into our Green House Snakes (which took over four years to do) it resulted in a diluted Green House Snake (the result of hypomelanism), which we have called a Hypo Green House Snake (as can been seen in the pictures). If it were an Anerythristic mutation we would expect to see a light grey house snake with no green colour coming through.

This mutation results in a lack of the pigment cells producing melanin, which results in a paler, more dilute animal. This mutation has been proven to be a recessive mutation and has been bred with T Albino and more recently Green House Snakes.