The Western limestone ctenotus (Ctenotus australis) is a species of skink native to coastal areas of south west Western Australia. It is found amongst heath on coastal dunes, and in open woodland on the Swan Coastal Plain. It is generally restricted to areas with limestone.
It is quite large for a Ctenotus. It is a light brown colour, but over this is a complex, prominent pattern of black, white and brown stripes.