LIZARDS. 



393 



instead of depositing her eggs in the sand to be matured by the 

 warmth ol the sun, as other lizards, the female of this species 

 retains them until the young are hatched, and thus they are produced 

 alive. 



The Sand Lizards (Lacerta agilis) are remarkable for the activity 

 of their movements. Every one must have remarked with what 

 rapidity they run from one place to .another, and how they can 

 cling to walls and rocks by means of their long and crooked claws. 

 The food of these lizards consists chiefly of insects. They are 

 timid, harmless animals, darting away on the slightest alarm, and 

 concealing themselves in some convenient retreat. 



The Flying Lizards (Draco volans) have their hinder pairs of ribs 

 prolonged to such an extent that they support a broad expansion of 



Flti. 325. DRACO VOLAKS. 



the skin, so spread out from either side as to perform the office of a 

 parachute, thus enabling these little creatures to spring from tree to 

 tree with wonderful activity. 



The Scinks (SdncidsB) have the legs small, feeble, and set far 

 apart ; the body is covered with overlapping scales. The tongue is 

 fleshy, notched, and scaly. They are harmless, commonly feeding 

 in insects ; but 



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