The asper were only recently introduced into American herpetoculture and are relatively rare.  The asper are very similar to the centralian rough knobtails, Nephrurus amyae, but are smaller and generally are dark or greyish in color. They are indigenous to northern Australia, ranging north into the Cape York peninsula.  They are generally dark charcoal grey to black, but may also be creamy white and grey.  Some populations in FNQ have purple bands.  These geckos are very popular and are a great addition to our collection.

Female asper, light phase and amazing!	A little defensive, are we?
Female closer, cool head pattern	The male is so much darker than the female