Robert Valentic / Striped legless lizard (Delma impar) female, in volcanic plain near Reedesdale in central Victoria, Australia.

Robert Valentic / Pink-tailed Worm Lizard (Aprasia parapulchella) male from the whipstick mallee habitat near Bendigo in central Victoria, Australia, November. Controlled conditions

Robert Valentic / Striped legless lizard (Delma impar). Reedesdale, Victoria, Australia. Grassland species accorded endangered status in Victoria.

Jiri Lochman / Burton's Legless Lizard (Lialis burtonis), Willandra Lakes UNESCO Natural World Heritage Site, New South Wales, Australia.

Jiri Lochman / Common scaly foot legless lizard (Pygopus lepidopodus), Cape Range National Park, Ningaloo Coast UNESCO Natural World Heritage Site, Western Australia.

MYN / JP Lawrence / Big-scaled neusticurus (Potamites strangulatus) San Jose de Payamino, Ecuador. Meetyourneighbours.net project

MYN / JP Lawrence / Lizard (Potamites sp) San Jose de Payamino, Ecuador Meetyourneighbours.net project

MYN / JP Lawrence / Lizard (Potamites sp) San Jose de Payamino, Ecuador Meetyourneighbours.net project

Robert Valentic / Flap footed lizard {Delma nasuta} hunting for invertebrates at night, Camooweal, Queensland, Australia

Joel Sartore / Photo Ark / Striped legless lizard (Delma impar) portrait, Moonlit Sanctuary, Australia. Captive. Endangered.

Joel Sartore / Photo Ark / Striped legless lizard (Delma impar) portrait, Moonlit Sanctuary, Australia. Captive. Endangered.

Joel Sartore / Photo Ark / Striped legless lizard (Delma impar) head portrait, Moonlit Sanctuary, Australia. Captive. Endangered.