Carlia triacantha
—
Desert Rainbow Skink
Also known as:
Desert Rainbow-skink

I confess that I am not great at telling the various sympatric Carlia species apart. I had originally ID'ed this one as a female or non-breeding male Carlia rufilatus, but I was convinced otherwise by someone on iNaturalist.

The faint red stripe on the side indicates that this is a breeding male, assuming I've gotten the species right.
Online references:
- Carlia triacantha account on The Reptile Database
Printed references:
- Cogger, H. G. 2014. Reptiles & Amphibians of Australia, Seventh Edition
- Wilson, S. and Swan, G. 2017. A Complete Guide to Reptiles of Australia, Fifth Edition