 including the Fitzgerald River, Lake Magenta and Dragon Rocks national parks and state reserves, and at the Ravensthorpe Range.The western and eastern groups may have become isolated several thousand years ago by a geographic barrier at the Great Australian Bight.The individual range of "P. shortridgei" is likely to vary with food availability and other circumstances, recorded as 0.75 hectares in one survey and up to 5 ha in a study using radio tracking.