Robert Valentic / Gibber gecko (Lucasium byrnei) male standing in sand. Near Morgan, Hattah-Kulkyne and Murray-Kulkyne Biosphere Reserve, South Australia. May.

Robert Valentic / Marbled velvet gecko (Oedura cincta) sub adult male, Acacia shrubland south of Charleville, Queensland, Australia.

Robert Valentic / Gulf Marbled Velvet Gecko (Oedura bella) male emerging from a crevice in the sandstone massifs at dusk in the Boodjamulla National Park, Gulf of Carpentaria, Queensland, Australia.

Robert Valentic / Eastern Spiny-tailed Gecko (Strophurus williamsi) male, near St George, Queensland, Australia.

Robert Valentic / Northern spiny-tailed gecko (Strophurus ciliaris aberrans) female, Yardie Creek, Exmouth Peninsula, Western Australia.

Robert Valentic / Mereenie velvet gecko (Oedura luritja) female from the sandstone rock formations in the Watarrka National Park, central Australia, Northern Territork, Autumn.

Robert Valentic / Northern spiny-tailed gecko (Strophurus ciliaris aberrans) camouflaged on dead twig, Exmouth, Western Australia.

Daniel Heuclin / Jewelled gecko (Naultinus gemmeus) on white background. Captive, occurs in New Zealand

Daniel Heuclin / Jewelled gecko (Naultinus gemmeus) on white background. Captive, occurs in New Zealand

Daniel Heuclin / Jewelled gecko (Naultinus gemmeus) on white background. Captive, occurs in New Zealand

Chris Mattison / Northern spiny-tailed gecko (Strophurus ciliaris) tail, showing spines. Captive, occurs in Australia.

Chris Mattison / Northern spiny-tailed gecko (Strophurus ciliaris) licking eyeball, Captive, occurs in Australia.