Photographs of typical males showing throat colour difference between the red and blue throated rainbow skinks.

<p>A) The red throated rainbow skink, <i>Carlia rubrigularis</i> (RED) (N-RED and S-RED are indistinguishable) and B) the blue throated rainbow skink, <i>C. rhomboidalis</i> (BLUE). Throat coloration is present in both males and females in the breeding season, but is more vivid in adult males and often absent in females. Photographs: Anthony O'Toole, University of Queensland.