Thanks Patrick, Is it safe to assume water dragons in ACT are all Gippsland? Sometime hard to confirm when they are very young. Is there any evidence of interbreeding? Sadly it has been awhile since I have seen Water Dragons along the creek at Jarramlee Park in Dunlop. They used to be so common. Being adjacent Jarramlee Grasslands we have Birds of Prey and Foxes which may be killing them off. The creek flooding could be another factor as we have had a few over the last few years equivalent to a 100 year flood events.
My pleasure John. Generally speaking yes, the water dragons in the ACT belong to the subspecies Intellagama lesueurii howittii. As far as I know, there's no records of the nominate subspecies present in the ACT to date. Unfortunately, two adult males have been observed in Queanbeyan, beside the Queanbeyan River. So best not to assume and if in doubt leave it as Intellagama lesueurii.