The upper body is greyish-brown,  There is very little difference about this species and the six other species of petrogales found in this region; the difference were made only by genetic studies (it has 20 chromosomes). It is the smallest of the genus and one of the rarest.
The upper body has a greyish-brown color,  There is little variation between this species and the six other petrogales in the region; the differences were established through genetic research (it has 20 chromosomes). It is the least among its kind and considered one of the rarest.