dead stems, where it remains pressed closely and without move- 
ment against the bark when alarmed. Other relatively common 
species are the beautifully coloured Painted-dragon (A. pictus ) 
and the Tawny-dragon (A. decresii ) ; the last-named is known 
only from South Australia. 
The Scinks include the lizards most familiar to the layman. 
The most notable South Australian Scink is the Stumpy-tail, 
Bob-tail, Shingle-back or Sleepy-lizard, as it is variously known. 
This lizard ( Trachysaurus rucjosus) has large, rough scales, and 
possesses some primitive characters, including the remnant of a 
Pig. 25. — The lew-lizard is alarmed (Amphibolurus barbatus). 
(After C. Barrett.) 
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