This is one of the best wilhelminae, with roundish dorsal. But I remember Emydura had a nice one too, for which I suggested to him to self it.
This is probably the only way to conserve species. Get as many in collectors hand, and hobbyists can buy at cheap price, so no one will attempt to plunder the species from its habitat. CITES NO, private collection YES. Please see the discussions under "Conservation".