 The population density increases toward coastal areas of its range, especially at the south.The distribution range along the southern coast extends past Esperance to the east.From the southern coast the species occurs as far north as Cape Naturaliste, Bridgetown, Lake Muir, the Stirling Range, Gairdner River (Calyerup) and the Ravensthorpe Range, and is present off the coast at Bald and Coffin Islands near the city of Albany., The eastern extent of the population at the Esperance Plains region occurs at Cape Arid National Park, and at offshore outcrops of the Recherche Archipelago, such as Middle and Woody islands.