This species was described from an inexact locality in the âCape of Good Hopeâ and shows a narrow distribution along the dry to arid south-western coastline of South Africa, from Bloubergstrand on the northern outskirts of Cape Town to Port Nolloth in Namaqualand, close to the Namibian border (Harrison et al. 2003). The estimated extent of occurrence of this species lies between 13,750 and 22,150 km2, the latter accounting for sea area, the former subtracting sea area as areas of unsuitable habitat. It is likely to have a more restricted area of occupancy of probably no more than 3,000 km2 based on the area of relatively intact habitat in the centre of this species' range.
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