Demansia psammophis psammophis (Yellow-faced Whip Snake)
No IUCN Status.
There are three subspieces of Demansia psammophis: once again nature refuses to fit nicely into our boxes. From what I've read there is significant range overlap between the subspecies. I don't know if they hybridise (crossbreed).
Luckily on the east of Australia (where this individual was found) only the nominate subspecies occurs. Another interesting fact: the nominate subspecies (the first described/discovered) retaines the species name as it's subspecies name.