Ta Ta dragons as they are called locally where they occur are generally dragons of the genus Lophognathus. There are three species that have all been called Ta Ta's including longirostris, gilberti and temporalis. The dragons commonly called Ta Ta's around the Darwin area are in fact L. temporalis common name the swampland dragon. They are referred to as Ta Ta's because of the way they actually run on their back legs and wave their front legs around in mid air as they are running away from you. All species of the genus Lophognathus exhibit this behaviour whilst running hence the reason they are all called Ta Ta's where they occur.
The animal in the photo is from the Diporiphora group. This group is not known for running with waving arms such as exists in Lophognathus. There can sometimes be local or endemic names for species that can be confusing such as I encountered recently when I came across a reference to a dragon called a Nobby from up around the Townsville area of North Queensland that I assumed was the Nobbi dragon, Amphibolurus nobbi. When I investigated further it turned out to be another dragon from the complex Diporiphora, this time the species was australis or the Eastern Two Lined dragon or more commonly the Tommy Roundhead. Evidently these animals are called Nobby's around this area even though the Nobbi dragon's Northern limit to its range is around this area also.
To answer an earlier question about how big do they get, most species in the complex Diporiphora are small slender dragons that grow to sizes between 15 - 25 centimetres, with some individuals growing up to 30 cms total length, tip of snout to end of tail.
Hope this helps everyone
