Burton’s Legless Lizards (Lialis burtonis) are descended from geckoes but unlike their four legged cousins they have given up legs — pretty much completely and have only rudimentary limbs that are not much more than flaps near the vent. L. burtonis is Australia’s most widespread reptile; it ranges across most of the continent and is found in virtually every habitat type. L. burtonis is ecologically convergent with macrostomatan snakes. Like snakes, L. burtonis feeds at infrequent intervals on relatively large prey (other lizards), which are swallowed whole. They are capable of eating skinks that are as much as 40% of their body weight. They are found amongst leaf litter where they are able to hide and ambush their prey. Their body form shifts as they increase in size and smaller lizards have longer and wider heads and shorter tails than do larger animals.
This specimen was found while rangers were clearing leaf litter away from rock art at Makkalarl to protect the rock art from damage in wildfire events. It was the biggest specimen the rangers or I had ever seen and was probably about half a metre in length. The colour was also unusual — an overall bronze-gold colour on top and paler underneath while most that I have seen have been varying shades of grey, and with some striping. L. Burtonis from the Top End usually have a thin line above the eye but not this one. L. Burtonis shares a number of characteristics with snakes and colour variability seems to be one such similarity. Dr Tony Griffiths tells me there are 14 different colour morphs of the venomous western brown snake, another denizen of the Deep North. L. Burtonis is of course non-venomous and is easily distinguished from snakes in the Top End by it’s peculiarly elongated snout and wedge-shaped head. Picture: Peter Cooke. Source: Michael WALL and Richard SHINE in Asian Herpetological Research 2013, 4(1): 9–21

More on representation of horses in Western Arnhem Land contact rock art.
The horse in the picture at the top, next to Samuel Namundja, was drawn by someone having difficulty sorting horse and kangaroo anatomy. The horse is very kangaroo-like.
In the painting below the artist has a firm grip on horse anatomy, other than issues of scale for head and body. Pipe-smoking riders sharing one horse is not something you would see every day and the intention seems to be humorous and quirky.
It seems reasonable to conclude the painting at the top was drawn by someone who experienced horses only briefly before putting brush to rock while the artist below had spent more time amongst the white people and their beasts.
Both photographs are by David Hancock and are from the Fragile First Impressions exhibition being shown in-house at the conservators conference of the International Council of Museums currently happening in Melbourne.

When European artists first arrived in Australia they struggled to draw the local fauna and flora. Their landscape art had an “englishness” about it and kangaroos and other Australian fauna had an unnatural resemblance to foxes, stoats and the like.
Not surprisingly, Aboriginal artists faced the same problem when they first encountered European beasts.
These paintings from a site in Djok clan country, Western Arnhem Land make the point quite visually.
The artists were well used to drawing kangaroos. The horses they drew were influenced by a mental macropod template for large mammals — big back legs, small front legs and looking like they are bounding rather than running.
We believe these pictures may have been painted in about 1865 when Captain Frances Cadell put a mob of horses ashore on the Liverpool River and went exploring on horseback.
The paintings are part of the Fragile First Impressions Exhibition of photographs of contact rock art from Western Arnhem Land at the International Council of Museums Conference here in Melbourne this week. The photographs were taken by Top End photojournalist David Hancock.
The show is open only to delegates to the conference but we hope to show it later in Canberra, Darwin and maybe Sydney.
Will keep you posted.