Delmas are in the legless lizard family Pygopodiae, which are closely related to gekkos. Other names for them are flap-footed lizards or slithering gekkos. Like gekkos they have ears, can make noises, lay eggs, but they have no front legs and the rear legs are reduced to flaps. They have no eyelids and lick their eyes, which are covered with a clear protective layer. This little critter hunts insects and grasshoppers.
The Australian Geographic has this great article
Last week, while raking leaves I was excited to find another shorter ‘legless lizard’.
After taking many images, I noticed dinky little legs,which it uses to push its body through the leaf litter.
Meet Hemiergis peronii. Peron's Earless Skink/Lowlands Earless Skink/Four-Toed Earless Skink, which is quite common in WA gardens.
They have movable clear lower eyelids and give birth to live young.
Hemiergis peronii Perons Earless Skink note the tiny legs

