Snake-necked turtles from Western Australia and the Northern Territory. Specimen bearing GK code was genetically studied. A Chelodina kurrichalpongo, Bullo River, Northern Territory (GK2, Northern Territory Museum NTM R28391, collected 2004); B C. walloyarrina, Stewart River, Kimbolton, Western Australia (Western Australian Museum WAM R51829, collected 1975); C C. walloyarrina, Mitchell River, Western Australia (Western Australian Museum WAM R141069, collected 1998); D C. burrungandjii, Katherine, Northern Territory (Western Australian Museum WAM R26838, collected 1966). Scale bars = 5 cm.